流量測(cè)量的發(fā)展可追溯到古代的水利工程和城市供水系統(tǒng)。古羅馬凱撒時(shí)代已采用孔板測(cè)量居民的飲用水水量。公元前1000年左右古埃及用堰法測(cè)量尼羅河的流量。我國著名的都江堰水利工程應(yīng)用寶瓶口的水位觀測(cè)水量大小等等。17世紀(jì)托里拆利奠定差壓式流量計(jì)的理論基礎(chǔ)，這是流量測(cè)量的里程碑。自那以后，18、19世紀(jì)流量測(cè)量的許多類型
超聲波流量計(jì)生產(chǎn)公司 0411-87305712
超聲波流量計(jì)實(shí)時(shí)信息，超聲波流量計(jì)資料下載，超聲波流量計(jì)價(jià)格，相信大連索尼卡—流量測(cè)量問題輕松解決。
2010年4月26日
流量計(jì)的發(fā)展
Tags: 流量計(jì)的發(fā)展
發(fā)布:nv2118 | 分類:超聲波流量計(jì)技術(shù) | 評(píng)論:0 | 引用:0 | 瀏覽:
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