這兩段話要如何翻才順呢? 1.Alternative definitions of tray efficiency are more often employed to relate tray efficiency to masstransfer fundementals, as discussed by Lockett 2.Overall column efficiency is normally obtained from test data by matching a stage-to-stage calculation, usually by means of a commercial tower simulation, to test data. Based on the measured mass and component balances, boilup, reflux, temperatures, pressures and compositions, the number of stages in the calculation is varied until the closest match to data is obtained. Good practices for obtaining reliable test data and for correctly deriving overall column efficiencies from them are discussed in Refs.2and3.查看更多2个回答 . 3人已关注