西城57000013測厚儀_中海德（福建）工業設備有限公司

品牌：西門子

規格：

產地：德國

沒有市場價

只有超值的性價比

正常合作

只求長遠

售後保障

進口備件渠道

供應紙廠，鋼廠，食品行業，汽車制造等

工業生產線上備件

聯係人：夏極

公司地址：福建省福州市高新區烏龍江大道正榮財富中心3座八層

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Vickers威格士859160DG4V30BMUH760DG4V30BMUH760也有的，如水的密度、粘滯度、表面張力等，在某一具體條件下是不變的，就可以不予考慮，現將其中關係簡單介紹如下：氣液兩相間的傳質強度取決於分子與湍流的擴散速度，可以用一般傳質公式表示：u=dG／dt=KFC其中：u：傳質速度，可用在t時間內從氣相傳入液相的臭氧量G確定，即dG／dt。K：傳質係數，F：氣相與液相的接觸表面積，C傳質過程中的動力，可用臭氧在實際情況下與平衡時的濃度差決定(即水中臭氧濃度與臭氧源中臭氧濃度差別越大，傳質速度越大)。