control requirement的用法和樣例：
例句
- The actual control condition at the root of the notch is more problematic.
在缺口根部的實(shí)際控制條件是更難捉摸的。 - Researches on the methods and mechanism of phosphorus removal under anaerobic conditions are at the beginning, and the process control need to be investigated.
有關(guān)厭氧條件下除磷的方法和機理的研究剛剛開(kāi)始，厭氧過(guò)程中磷去除的工藝控制條件還有待得到進(jìn)一步研究。
