Terms for subject Mechanic engineering containing non

English	Chinese
non-fluid oil	不流动润滑油
non return valve	单向〔止回〕阀
non-return valve	止回〔止逆〕阀
non-return valve	抽汽逆止阀
non-rising stem	不升起阀杆
non-salient pole	非凸极式非突磁极