黄色视频网站在观看,午夜福利合集精品国产xxx,亚洲AV永久纯肉无码精品动漫

国产一级婬片免费播放_久久女同互慰一区二区三区_久久青草视频_少妇人妻精品一区二区三区-亚洲日韩高清在线视频,国产亚洲视频在线播放香蕉,999精品色在线播放,色九月亚洲综合网

新聞中心

綿陽市“十四五”生態(tài)環(huán)境保護規(guī)劃
2023/02/16 1146
綿陽市“十四五”生態(tài)環(huán)境保護規(guī)劃
查看全文
山東省低揮發(fā)性原輔材料替代企業(yè)豁免揮發(fā)性有機物末端治理實施細則（試行）
2023/02/10 953
山東省低揮發(fā)性原輔材料替代企業(yè)豁免揮發(fā)性有機物末端治理實施細則（試行）
查看全文
構建VOCs監(jiān)測體系，管控企業(yè)污染排放
2023/01/03 1170
VOCs是指常溫下飽和蒸汽壓大于70 Pa、常壓下沸點在260℃以下的有機化合物，或在20℃條件下，蒸汽壓大于 […]
查看全文
VOC監(jiān)測在線監(jiān)測系統(tǒng)的應用
2023/01/03 1135
VOC監(jiān)測在線監(jiān)測系統(tǒng)的應用大氣中的VOC主要來源包括室內(nèi)和室外，室外污染主要來自工業(yè)生產(chǎn)，如石油化工、醫(yī) […]
查看全文
污染源揮發(fā)性有機物在線監(jiān)測系統(tǒng)
2022/12/17 1128
[video width="1920" height="1080" mp4="http://m.tsskgl.com/wp-content/uploads/2022/12/污染源揮...
查看全文
智易時代大氣環(huán)境監(jiān)測項目案例
2022/11/29 1171
[video width="1080" height="1920" mp4="http://m.tsskgl.com/wp-content/uploads/2022/11/智易時代...
查看全文

在線咨詢

請?zhí)顚懥粞?/textarea>
		</div>
		<div   id="gucaqqgyu"   class="submut_k" >
          <div   id="gucaqqgyu"   class="titles_t"></div>
           <input name="redirect_to" type="hidden" value="http://m.tsskgl.com?commentys=yes" />
		   <input id="comment_post_ID" type="hidden" value="902" name="comment_post_ID">
			<input name="submit" type="submit" id="submits" tabindex="5" class="form_btns2"value="提交" />
			<p class="tishi">loading...</p>
		</div>
        <div   id="gucaqqgyu"   class="wp_clear"></div>

</form>
    </div></div><div   id="gucaqqgyu"   class="toolbar_pc PcOnly">
	<ul>
		<li id="gucaqqgyu"    class="toolbar-qq">
		<a class="out"  >
			<i style="color:#0095d4" class="out  fa fa-qq"></i>
			QQ咨詢		</a>
	<div   id="gucaqqgyu"   class="bar_qq_tc sub-menu"><a rel="nofollow"  target="_blank"><i class="fa fa-qq"></i><span><font>陳經(jīng)理</font><p >QQ 11824596</p></span></a><a rel="nofollow"  target="_blank"><i class="fa fa-qq"></i><span><font>武經(jīng)理</font><p >QQ 514852933</p></span></a><a rel="nofollow"  target="_blank"><i class="fa fa-qq"></i><span><font>李經(jīng)理</font><p >QQ 284762563</p></span></a></div>	</li>
		
			<li id="gucaqqgyu"    class="toolbar-qq">
		<a class="out"  >
			<i style="color:#59bc1c" class="out  fa fa-weixin"></i>
			關注微信		</a>
	<div   id="gucaqqgyu"   class="bar_weixin_tc sub-menu"><img alt="關注微信" src="http://m.tsskgl.com/wp-content/uploads/2023/02/微信圖片_20230214133533.jpg"/></div>	</li>
		
			<li id="gucaqqgyu"    class="toolbar-qq">
		<a class="out"  >
			<i style="color:#fea40b" class="out  fa fa fa-phone"></i>
			聯(lián)系電話		</a>
	<div   id="gucaqqgyu"   class="bar_qq_td sub-menu"><p><i class="fa fa-pencil-square"></i>總機|022-23778895</p><p><i class="fa fa-pencil-square"></i>銷售部|13803026441</p><p><i class="fa fa-pencil-square"></i>售后部|13902016087</p></div>	</li>
		
	
		
	
	
	
			<li id="gucaqqgyu"    class="toolbar-qq">
		<a class="out" href="#top" >
			<i style="color:#20a9cc" class="out  fa fa-angle-up"></i>
			回到頂部		</a>

</li>
		</ul>
	
</div>
	
	<script type="text/javascript" src="http://m.tsskgl.com/wp-content/themes/thousandfaceIslands/js/jquery-2.1.1.min.js" id="jquery-js"></script>
<script type="text/javascript" src="http://m.tsskgl.com/wp-content/themes/thousandfaceIslands/js/swiper4.min.js" id="swiper2-js"></script>
<script type="text/javascript" src="http://m.tsskgl.com/wp-content/themes/thousandfaceIslands/js/lazyload.min.js" id="lazyload-js"></script>
<script type="text/javascript" src="http://m.tsskgl.com/wp-content/themes/thousandfaceIslands/js/script.js" id="script-js"></script>
<script type="text/javascript" src="http://m.tsskgl.com/wp-content/themes/thousandfaceIslands/js/jquery.cookie.js" id="cookies-js"></script>
<script type="text/javascript" src="http://m.tsskgl.com/wp-content/themes/thousandfaceIslands/js/jquery.form.js" id="form-js"></script>
<script type="text/javascript" src="http://m.tsskgl.com/wp-content/themes/thousandfaceIslands/js/jquery.swipebox.min.js" id="swipebox-js"></script>
<script type="text/javascript">
  $(window).load(function(){
       
        $("#loading_waper").fadeOut(500);
    });

var windows=$(".header").width(); 
if(windows>=767){lazyclass="swiper-lazy"}else{lazyclass="swiper-move-lazy"}

window.addEventListener("load", function(event) {
    lazyload();
});

$(document).ready(function(){
	   
	   
	   var options = {
	    
	    success: function() {
			
	        $(this).ajaxSubmit();
            $("p.tishi").html("提交成功！");
		
			   
	    },
		error: function() { 
		 
		  $("p.tishi").html("提交失敗！請稍后再試！");
	
		  return false;                 
		 } 
		};
		
	 $("input.form_btns2").click(function() {$("form.form_btns2").ajaxForm(options); $("p.tishi").fadeIn("500");});  
	 $("input.form_btns1").click(function() {   $("form.form_btns1").ajaxForm(options);$("p.tishi").fadeIn("500");});

var post_more2 = new Swiper('.post_more2 ',{

speed:800,
 lazy: true,
 
  pagination: {
        el: '.pagination2',
		   clickable: true,
   
      },
 
 on: {
    slideChangeTransitionStart: function(){
      $('.case_title_listss2 .active').removeClass('active')
      $('.case_title_listss2 a').eq(post_more2.activeIndex).addClass('active')  
    }}
  });
   $('.case_title_listss2 a').on('touchstart mouseover',function(e){
    e.preventDefault()
    $('case_title_listss2  .active').removeClass('active')
    $(this).addClass('active')
   post_more2.slideTo( $(this).index() )
  })
  $('.case_title_listss2  a').mouseover(function(e){
    e.preventDefault()
  }) ;

<footer>
<div class="friendship-link">
<p>感谢您访问我们的网站，您可能还对以下资源感兴趣：</p>
<a href="http://m.tsskgl.com/" title="国产一级婬片免费播放_久久女同互慰一区二区三区_久久青草视频_少妇人妻精品一区二区三区-亚洲日韩高清在线视频,国产亚洲视频在线播放香蕉,999精品色在线播放,色九月亚洲综合网">国产一级婬片免费播放_久久女同互慰一区二区三区_久久青草视频_少妇人妻精品一区二区三区-亚洲日韩高清在线视频,国产亚洲视频在线播放香蕉,999精品色在线播放,色九月亚洲综合网</a>

<a href="http://m.0316seo.cn/">天天夜碰日日摸日日澡性色AV_欧美牲交A欧美牲交_久久er99热精品一区二区_精品人妻人人做人人爽</a>
<a href="http://hljhome.cn/">国产大屁股喷水视频在线观看_夜夜偷天天爽夜夜爱_久久永久免费人妻精品_无码专区国产精品视频</a>
<a href="http://m.youzhitian.cn/">国产亚洲精品97AA片在线播放|日韩欧美国产AⅤ另类|国产乱子伦视频三区|无码a√毛片一区二区三区|国产成本人片免费a∨短片|中文字幕a∨无码专区不卡|亚洲日韩国产成网在线观看</a>
<a href="http://slsgj.cn/">国产裸体美女永久免费无遮挡,国产农村妇女精品一二区,国产农村妇女毛片精品久久,国产女人18毛片水真多1</a>
<a href="http://m.8dsj.com.cn/">亚洲av无码成电影在线播放_久久精品人人做人人爽电影蜜月_中文字幕无码成人免费视频_亚洲精品国偷自产在线99正片</a>
<a href="http://m.1cr5mohjg.cn/">无码国产午夜福利片在线观看_成全动漫在线观看免费高清_精品亚洲永久免费精品app_无码人妻AⅤ一区二区三区69_日本一区午夜艳熟免费</a>
</div>
</div>

</footer>

<a href="http://www.hitechcorp.cn" target="_blank">国产一级片内射视频播放
</a>|
<a href="http://www.robynamos.com" target="_blank">亚洲一区二区三区国产精华液
</a>|
<a href="http://www.xkok.cn" target="_blank">免费无码国产网站麻豆
</a>|
<a href="http://www.nvxing100.cn" target="_blank">日韩视频中文字幕精品偷拍
</a>|
<a href="http://www.fashionfabric.cn" target="_blank">欧美国产日本高清不卡免费
</a>|
<a href="http://www.dumingcen.cn" target="_blank">色婷婷欧美在线播放内射
</a>|
<a href="http://www.tymls.cn" target="_blank">噜噜噜久久亚洲精品国产品
</a>|
<a href="http://www.jlikkt.cn" target="_blank">国产aⅴ无码专区亚洲av
</a>|
<a href="http://www.styleawnings.com" target="_blank">国产一级毛片在线视频
</a>|
<a href="http://www.beraceseries.com" target="_blank">四季国产人成精品一区二区
</a>|
<a href="http://www.cpsj163.cn" target="_blank">国产成人亚洲综合无码99
</a>|
<a href="http://www.sweetcreationsllc.net" target="_blank">日日噜噜夜夜狠狠久久丁香五月
</a>|
<a href="http://www.jjmigedu.com" target="_blank">亚洲国产精彩中文乱码av
</a>|
<a href="http://www.977hk.cn" target="_blank">中文字幕无码制服丝袜视频
</a>|
<a href="http://www.jxbaobei.cn" target="_blank">2018高清无码在线观看
</a>|
<a href="http://www.17sss.cn" target="_blank">精品欧美一区二区三区久久久
</a>|
<a href="http://www.yagaa.cn" target="_blank">久久丰满熟妇人妻中文字幕
</a>|
<a href="http://www.yourwebsite1.com" target="_blank">无码AV免费精品一区二区三区
</a>|
<a href="http://www.czssly.com.cn" target="_blank">欧美一区二区三区在线TV
</a>|
<a href="http://www.qungei.cn" target="_blank">国产精品污WWW在线观看
</a>|
<a href="http://www.truscan.cn" target="_blank">色欲人妻AAAAAAA无码
</a>|
<a href="http://www.cywjc.cn" target="_blank">高清无码毛片在线观看
</a>|
<a href="http://www.dz699.cn" target="_blank">61精品国语露脸对白电影
</a>|
<a href="http://www.tiaopitu.cn" target="_blank">国产尤物AV尤物在线看
</a>|
<a href="http://www.fgxzw.cn" target="_blank">欧美激情视频一区二区三区
</a>|
<a href="http://www.shzlchem.cn" target="_blank">人妻插B视频一区二区三区
激情内射日本一区二区三区
</a>|
<a href="http://www.kt22.cn" target="_blank">日本熟妇色XXXXⅩ视频
</a>|
<a href="http://www.a5699.cn" target="_blank">亚洲乱码国产一区三区
</a>|
<a href="http://www.ge23.cn" target="_blank">美女内射毛片在线看3D
</a>|
<a href="http://www.jbmtc.cn" target="_blank">免费无码又黄又爽又刺激
</a>|
<a href="http://www.turismolambayeque.com" target="_blank">精品偷自拍另类在线观看
</a>|
<a href="http://www.zjhtyy.cn" target="_blank">国产91综合一区在线观看
</a>|
<a href="http://www.toomanyplants.com" target="_blank">国产99久久久久久免费看
</a>|
<a href="http://www.i1114.cn" target="_blank">在线观看片免费视频无码
</a>|
<a href="http://www.83gx.cn" target="_blank">亚洲欧洲久久久国产精品无码
</a>|
<a href="http://www.rg-mobile.com" target="_blank">人人妻人人澡人人爽人人精品浪潮
</a>|
<a href="http://www.ie8.com.cn" target="_blank">囯产乱色国产精品免费视频
</a>|
<a href="http://www.bg2055.cn" target="_blank">中文字字幕在线中文无码
</a>|
<a href="http://www.h1976.cn" target="_blank">国产看黄网站又黄又爽又色
</a>|
<a href="http://www.spibikefest.com" target="_blank">久久午夜夜伦鲁鲁片无码免费
</a>|
<a href="http://www.m9m8.com" target="_blank">2022国产成人精品视频
</a>|
<script>
(function(){
    var bp = document.createElement('script');
    var curProtocol = window.location.protocol.split(':')[0];
    if (curProtocol === 'https') {
        bp.src = 'https://zz.bdstatic.com/linksubmit/push.js';
    }
    else {
        bp.src = 'http://push.zhanzhang.baidu.com/push.js';
    }
    var s = document.getElementsByTagName("script")[0];
    s.parentNode.insertBefore(bp, s);
})();
</script>
</body><div id="zvjtr" class="pl_css_ganrao" style="display: none;"><strike id="zvjtr"><dl id="zvjtr"></dl></strike><i id="zvjtr"><code id="zvjtr"><legend id="zvjtr"></legend></code></i><legend id="zvjtr"></legend><mark id="zvjtr"><font id="zvjtr"><ins id="zvjtr"></ins></font></mark><bdo id="zvjtr"></bdo><em id="zvjtr"><mark id="zvjtr"><font id="zvjtr"></font></mark></em><listing id="zvjtr"><sup id="zvjtr"><menu id="zvjtr"></menu></sup></listing><video id="zvjtr"></video><acronym id="zvjtr"><strike id="zvjtr"><dl id="zvjtr"><thead id="zvjtr"></thead></dl></strike></acronym><ins id="zvjtr"><meter id="zvjtr"><mark id="zvjtr"></mark></meter></ins><thead id="zvjtr"><acronym id="zvjtr"><strike id="zvjtr"><dl id="zvjtr"></dl></strike></acronym></thead><listing id="zvjtr"></listing><acronym id="zvjtr"><strike id="zvjtr"></strike></acronym><dl id="zvjtr"><label id="zvjtr"></label></dl><menu id="zvjtr"></menu><menu id="zvjtr"></menu><mark id="zvjtr"><font id="zvjtr"><ins id="zvjtr"><em id="zvjtr"></em></ins></font></mark><acronym id="zvjtr"><sup id="zvjtr"></sup></acronym><ul id="zvjtr"><mark id="zvjtr"><font id="zvjtr"><pre id="zvjtr"></pre></font></mark></ul><legend id="zvjtr"></legend><pre id="zvjtr"><ul id="zvjtr"><button id="zvjtr"><kbd id="zvjtr"></kbd></button></ul></pre><tfoot id="zvjtr"><center id="zvjtr"></center></tfoot><acronym id="zvjtr"><strike id="zvjtr"></strike></acronym><nobr id="zvjtr"></nobr><meter id="zvjtr"></meter><pre id="zvjtr"></pre><address id="zvjtr"></address><ins id="zvjtr"><em id="zvjtr"><mark id="zvjtr"></mark></em></ins><ul id="zvjtr"><mark id="zvjtr"><font id="zvjtr"><pre id="zvjtr"></pre></font></mark></ul><code id="zvjtr"></code><tfoot id="zvjtr"></tfoot><em id="zvjtr"></em><button id="zvjtr"><kbd id="zvjtr"><pre id="zvjtr"><ul id="zvjtr"></ul></pre></kbd></button><tbody id="zvjtr"><acronym id="zvjtr"></acronym></tbody><progress id="zvjtr"></progress><progress id="zvjtr"></progress><acronym id="zvjtr"><tfoot id="zvjtr"><center id="zvjtr"><tbody id="zvjtr"></tbody></center></tfoot></acronym><mark id="zvjtr"><font id="zvjtr"><ins id="zvjtr"></ins></font></mark><address id="zvjtr"></address><ins id="zvjtr"></ins><optgroup id="zvjtr"></optgroup><progress id="zvjtr"></progress><kbd id="zvjtr"><pre id="zvjtr"><ul id="zvjtr"><button id="zvjtr"></button></ul></pre></kbd><bdo id="zvjtr"></bdo><meter id="zvjtr"></meter><tbody id="zvjtr"><td id="zvjtr"></td></tbody><kbd id="zvjtr"><pre id="zvjtr"><ul id="zvjtr"><button id="zvjtr"></button></ul></pre></kbd><thead id="zvjtr"><meter id="zvjtr"><sup id="zvjtr"><center id="zvjtr"></center></sup></meter></thead><code id="zvjtr"></code><center id="zvjtr"><tbody id="zvjtr"></tbody></center><dl id="zvjtr"><label id="zvjtr"></label></dl><code id="zvjtr"></code><kbd id="zvjtr"><ins id="zvjtr"><em id="zvjtr"><button id="zvjtr"></button></em></ins></kbd><td id="zvjtr"><tfoot id="zvjtr"></tfoot></td><thead id="zvjtr"><acronym id="zvjtr"></acronym></thead><strong id="zvjtr"></strong><center id="zvjtr"><label id="zvjtr"></label></center><optgroup id="zvjtr"></optgroup><font id="zvjtr"><address id="zvjtr"><em id="zvjtr"></em></address></font><font id="zvjtr"></font><font id="zvjtr"><address id="zvjtr"><em id="zvjtr"></em></address></font><label id="zvjtr"></label><thead id="zvjtr"><acronym id="zvjtr"><strike id="zvjtr"><dl id="zvjtr"></dl></strike></acronym></thead><tbody id="zvjtr"><td id="zvjtr"></td></tbody><font id="zvjtr"><ins id="zvjtr"><em id="zvjtr"><mark id="zvjtr"></mark></em></ins></font><sub id="zvjtr"></sub><center id="zvjtr"><thead id="zvjtr"></thead></center><bdo id="zvjtr"></bdo><label id="zvjtr"></label><mark id="zvjtr"></mark><i id="zvjtr"></i><label id="zvjtr"></label><mark id="zvjtr"></mark><bdo id="zvjtr"></bdo><dl id="zvjtr"><thead id="zvjtr"></thead></dl><mark id="zvjtr"><font id="zvjtr"><ins id="zvjtr"><em id="zvjtr"></em></ins></font></mark><label id="zvjtr"><legend id="zvjtr"></legend></label><strike id="zvjtr"></strike><address id="zvjtr"></address><tfoot id="zvjtr"><center id="zvjtr"></center></tfoot><font id="zvjtr"><address id="zvjtr"><em id="zvjtr"></em></address></font><ul id="zvjtr"></ul><listing id="zvjtr"></listing><bdo id="zvjtr"></bdo><kbd id="zvjtr"></kbd><font id="zvjtr"><ins id="zvjtr"><em id="zvjtr"><mark id="zvjtr"></mark></em></ins></font><progress id="zvjtr"></progress><dfn id="zvjtr"><track id="zvjtr"><u id="zvjtr"><video id="zvjtr"></video></u></track></dfn><ins id="zvjtr"><em id="zvjtr"><mark id="zvjtr"></mark></em></ins><address id="zvjtr"></address><em id="zvjtr"></em><ul id="zvjtr"><button id="zvjtr"><kbd id="zvjtr"><pre id="zvjtr"></pre></kbd></button></ul><address id="zvjtr"></address><ins id="zvjtr"></ins><mark id="zvjtr"></mark><center id="zvjtr"></center><ins id="zvjtr"></ins><tbody id="zvjtr"></tbody><kbd id="zvjtr"><pre id="zvjtr"><ul id="zvjtr"><button id="zvjtr"></button></ul></pre></kbd><address id="zvjtr"></address><menu id="zvjtr"></menu><dfn id="zvjtr"><ul id="zvjtr"><button id="zvjtr"><video id="zvjtr"></video></button></ul></dfn><tbody id="zvjtr"></tbody><sup id="zvjtr"></sup><pre id="zvjtr"><ul id="zvjtr"><button id="zvjtr"><kbd id="zvjtr"></kbd></button></ul></pre><video id="zvjtr"><dfn id="zvjtr"><track id="zvjtr"><u id="zvjtr"></u></track></dfn></video><em id="zvjtr"><menu id="zvjtr"><code id="zvjtr"></code></menu></em><sup id="zvjtr"></sup><td id="zvjtr"><strike id="zvjtr"></strike></td><nobr id="zvjtr"></nobr><center id="zvjtr"><tbody id="zvjtr"></tbody></center><font id="zvjtr"></font><menu id="zvjtr"></menu><sup id="zvjtr"></sup><font id="zvjtr"></font><video id="zvjtr"><dfn id="zvjtr"></dfn></video><label id="zvjtr"></label><tbody id="zvjtr"><acronym id="zvjtr"></acronym></tbody><mark id="zvjtr"><font id="zvjtr"><ins id="zvjtr"></ins></font></mark><center id="zvjtr"><tbody id="zvjtr"></tbody></center><sup id="zvjtr"></sup><acronym id="zvjtr"></acronym><label id="zvjtr"></label><u id="zvjtr"><video id="zvjtr"></video></u><label id="zvjtr"></label><legend id="zvjtr"><sup id="zvjtr"></sup></legend><strike id="zvjtr"><dl id="zvjtr"><thead id="zvjtr"><acronym id="zvjtr"></acronym></thead></dl></strike><thead id="zvjtr"><acronym id="zvjtr"><strike id="zvjtr"><dl id="zvjtr"></dl></strike></acronym></thead><strike id="zvjtr"><dl id="zvjtr"></dl></strike><i id="zvjtr"><code id="zvjtr"><legend id="zvjtr"></legend></code></i><em id="zvjtr"><mark id="zvjtr"><font id="zvjtr"></font></mark></em><strong id="zvjtr"></strong><ins id="zvjtr"></ins><pre id="zvjtr"><ul id="zvjtr"><button id="zvjtr"><kbd id="zvjtr"></kbd></button></ul></pre><kbd id="zvjtr"><ins id="zvjtr"><em id="zvjtr"><button id="zvjtr"></button></em></ins></kbd><label id="zvjtr"></label><label id="zvjtr"></label><font id="zvjtr"></font><dfn id="zvjtr"><ul id="zvjtr"><button id="zvjtr"><video id="zvjtr"></video></button></ul></dfn><acronym id="zvjtr"><strike id="zvjtr"></strike></acronym><i id="zvjtr"></i><track id="zvjtr"><u id="zvjtr"><video id="zvjtr"><dfn id="zvjtr"></dfn></video></u></track><meter id="zvjtr"><sub id="zvjtr"></sub></meter><legend id="zvjtr"></legend><dl id="zvjtr"></dl><mark id="zvjtr"></mark><center id="zvjtr"><thead id="zvjtr"><acronym id="zvjtr"><tfoot id="zvjtr"></tfoot></acronym></thead></center><em id="zvjtr"></em><tfoot id="zvjtr"></tfoot><address id="zvjtr"></address></div>

国产一级婬片免费播放_久久女同互慰一区二区三区_久久青草视频_少妇人妻精品一区二区三区-亚洲日韩高清在线视频,国产亚洲视频在线播放香蕉,999精品色在线播放,色九月亚洲综合网

VOC監(jiān)測 - 天津智易時代科技發(fā)展有限公司 - Page 6

綿陽市“十四五”生態(tài)環(huán)境保護規(guī)劃

山東省低揮發(fā)性原輔材料替代企業(yè)豁免揮發(fā)性有機物末端治理實施細則（試行）

構建VOCs監(jiān)測體系，管控企業(yè)污染排放

VOC監(jiān)測 在線監(jiān)測系統(tǒng)的應用

污染源揮發(fā)性有機物在線監(jiān)測系統(tǒng)

智易時代大氣環(huán)境監(jiān)測項目案例

構建VOCs監(jiān)測體系，管控企業(yè)污染排放

VOC監(jiān)測在線監(jiān)測系統(tǒng)的應用