常見例句雙語例句The production of 1 Methoxy 2 Propanol by the catalytic reaction in a rectification column was disserated in this paper.研究了用催化精餾工藝由環(huán)氧丙烷和甲醇合成2 -羥丙基甲醚的方法。The former is a fatal limitation, which is the necessary condition for rectification column operation, and cannot be exceeded in actual design.而后者屬于不可接受限制,是塔板保證傳質(zhì)效果的充分條件,實際設計可結(jié)合具體情況適當調(diào)整。The dynamic characteristic of concentration change on plates of batch rectification column in no reflux start up process and in no reflux period of pulse operation process have been calculated.建立了間歇精餾無回流操作過程的數(shù)學模型,采用四階龍格庫塔法求解初值問題,計算無回流開工過程及間歇精餾脈動操作過程中無回流周期內(nèi)各塔板濃度變化的動態(tài)特性。 返回 rectification column