substitution method

基本解釋

You should know also substitution, how to set U equals something, and then see, oh, this becomes u times du, and so substitution method.
你們應(yīng)該了解換元法，讓U等于某值，然后就能把式子變成udu的形式，這就是換元法了。
This paper analysed the necessity of compensation for non-commodity forests and evaluated their ecological and social benefits by the equal benefit substitution method.
分析了生態(tài)公益林補償?shù)谋匾?，并以同等效益代替法進(jìn)行了生態(tài)效益和社會效益評價。
A calculation model of the coefficient of heat transfer between gas and stave body and inlaid refractory is built based on the substitution method of boundary condition.
基于邊界條件替換方法建立了高爐冷卻壁本體和搗打料與爐氣之間的換熱系數(shù)計算模型。