涡流空气分级机是一种重要的粉体分级设备.The turbo air classifier is a very important powder classification device.涡轮式气流分级机是精密分级设备中非常重要的类型之一.Turbo air classifier is a important style of accurate classifying facilities.涡流式空气分级机是干法分级的重要设备.The ...
They drummed it into her that she was not to tell anyone.他们反复告诫她，让她不要告诉任何人。Two issues almost daily drummed into the ears of Californians.两种争论几乎每天都要灌进加利福尼亚人的耳朵.He drummed his fingers on the leather top of his desk.他用手指连续敲...