麥?zhǔn)险婵毡矸诸?/title> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> <script>var V_PATH="/";window.onerror=function(){ return true; };</script> </head> <body> <h1><a href="http://doghomeopathy.com/">AV 无码高潮在线下载,黄色亚洲无码在线,精品国产sm在线大全,国产色系视频在线观看,亚洲人成网站在线播放2019</a></h1> <div style="position:fixed;left:-9000px;top:-9000px;"><span id="pgneg"><ins id="pgneg"></ins></span><b id="pgneg"></b><big id="pgneg"></big><dl id="pgneg"><blockquote id="pgneg"></blockquote></dl><form id="pgneg"><nobr id="pgneg"></nobr></form><s id="pgneg"></s><option id="pgneg"><tbody id="pgneg"></tbody></option><sup id="pgneg"></sup><label id="pgneg"><rt id="pgneg"></rt></label><form id="pgneg"></form><menuitem id="pgneg"></menuitem><p id="pgneg"></p><meter id="pgneg"><strike id="pgneg"></strike></meter><track id="pgneg"><optgroup id="pgneg"></optgroup></track><div id="pgneg"></div><u id="pgneg"><small id="pgneg"></small></u><td id="pgneg"><s 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style='background-color:#fff;position:absolute;z-index:9999999;left:0;top:0px;width:100%; height:6000px;'></div> <div id="7vlf1mmhd1k" class="Top w100"> <div id="7vlf1mmhd1k" class="w1000"> <div id="7vlf1mmhd1k" class="meau"> <span id="7vlf1mmhd1k" class="m1"></span> <span id="7vlf1mmhd1k" class="m2"></span> <span id="7vlf1mmhd1k" class="m3"></span> </div> <div id="7vlf1mmhd1k" class="Logo fl"><h1></h1></div> <div id="7vlf1mmhd1k" class="toptel"></div> <div id="7vlf1mmhd1k" class="clear"></div> </div> <div id="7vlf1mmhd1k" class="Nav w100"> <div id="7vlf1mmhd1k" class="Navlist w1000"> <ul> <li id="Top1"></li> </ul> <div id="7vlf1mmhd1k" class="clear"></div> </div> <div id="7vlf1mmhd1k" class="clear"></div> </div> <div id="7vlf1mmhd1k" class="clear"></div> </div> <div id="7vlf1mmhd1k" class="blockindex h450"> <div id="7vlf1mmhd1k" class="new9"> <div id="7vlf1mmhd1k" class="new91"> <h1>麥?zhǔn)险婵毡矸诸?/h1> 發(fā)布時間：2024-08-11 </div> <div id="7vlf1mmhd1k" class="new92"> <div class="7vlf1mmhd1k" id="contentt"></div> 麥?zhǔn)险婵沼嫹謕m-2/pm-2a/pm-3/pm-3j/pm-3a/pm-4/pm-4j麥?zhǔn)险婵沼?br>麥?zhǔn)险婵毡硪步宣溈藙谡婵沼?，轉(zhuǎn)動式壓縮真空計,流體式真空計，是根據(jù)理想等溫壓縮的波義耳—馬略特定律設(shè)計而成。由于它可以通過本身的參數(shù),直接算得壓強(qiáng)值,所以它除了進(jìn)行壓強(qiáng)測量外,還可以作為絕對真空計用來校驗(yàn)一些相對真空計,故被廣泛用于工業(yè)、科研、制冷等真空度測量工作之中。<br>麥?zhǔn)险婵毡碓恚?br>麥?zhǔn)险婵毡碛置溈藙谡婵沼嫞ㄒ步修D(zhuǎn)動式壓縮真空計），是根據(jù)理想等溫壓縮的波義耳--馬略特定律測定真空度的。<br>玻義耳-馬略特定律：它反映氣體的體積隨壓強(qiáng)改變而改變的規(guī)律。對于一定質(zhì)量的氣體，在其溫度保持不變時，它的壓強(qiáng)和體積成反比；或者說，其壓強(qiáng)p與它的體積v的乘積為一常量，即pv＝c（常數(shù)）（t不變時）或p1v1＝p2v2＝pnvn。式中常量的大小與氣體系統(tǒng)的溫度和氣體的質(zhì)量有關(guān)。實(shí)際氣體只是在壓強(qiáng)不太高、溫度不太低的條件下才服從這一定律）。 <br>三、麥?zhǔn)险婵毡碛猛荆?<br>麥?zhǔn)险婵毡碛置溈藙谡婵沼嫞ㄒ步修D(zhuǎn)動式壓縮真空計），可以通過本身的參數(shù)，直接算得壓強(qiáng)值，所以它除了進(jìn)行壓強(qiáng)測量外，還可以作為“絕對真空計”用來校驗(yàn)一些相對真空計，廣泛應(yīng)用于中央空調(diào)溴化鋰制冷機(jī)組、冶金、金屬鎂冶煉、石油化工、真空爐、真空干燥箱、電子管、高壓電力設(shè)備、科學(xué)實(shí)驗(yàn)、教育等。主要用于真空工業(yè)生產(chǎn)中對低真空的測量. <br>關(guān)鍵詞：真空計中央空調(diào) 制冷機(jī) 制冷機(jī) 真空計 <br> <div class="7vlf1mmhd1k" id="contentb"></div> 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