Replacers
(replacer 的复数) [法] 代替者, 代用品
🗣️ 情景例句
Concerned about whom?
为谁担心
Poverty is the mother of health.
缺乏是健康之母。
and we control it by means of the mud which we circulate down the drill pipe.
我们让泥浆顺着钻杆向下循环，用这种方法来控制压力。