幾種能源監(jiān)測(cè)流量?jī)x表的比較： 1、節(jié)流裝置：基于節(jié)流產(chǎn)生差壓，測(cè)差壓的平方根可知流量大小。長(zhǎng)期以來這類儀表由于可承受惡劣的工況，且已有國(guó)際標(biāo)準(zhǔn)作依據(jù)，曾占據(jù)了流量?jī)x表的60~70%市場(chǎng)，類型多達(dá)二、三十種。 ①經(jīng)典式：已建立國(guó)際、國(guó)
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2010年12月19日
幾種能源監(jiān)測(cè)流量?jī)x表的比較
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