English translation for "上下活动套管"

reciprocate casing
reciprocate the casing

Related Translations:

上下和睦:  the superiors and the inferiors are on good terms

上下转动:  tilting

吊上下:  pick u30” conductor handling slings and shackles

八方上下:  the four quarters the four

上下制导:  up-down guidance

上下键:  udown key

光标上下:  cursor up down

上下埃及:  upper and lower egypt

在上下:  in the afternoon

上下弦:  upper and lower chord

Similar Words：

"上下滑动吊窗" English translation, "上下滑动门" English translation, "上下话路" English translation, "上下回流式隔板" English translation, "上下活动式井壁刮针" English translation, "上下活动套管的装置" English translation, "上下活动钻具" English translation, "上下或往复的移动" English translation, "上下机翼间隔" English translation, "上下集电影" English translation