single-stage rotary vane vacuum pump 是什么意思

single-stage rotary vane vacuum pump

单级旋片真空泵

single-stage

[英]['s?ɡlst'e?d?][美]['s?ɡlst'e?d?]

单级，单级的;

例句:

1.

He says that though the pakistanis can now build a single-stage missile similar tochina's short-range m-11 on their own, they need help in their development of the 750km (470-mile) shaheen 1 missile and the 2500km shaheen 2.

他说尽管巴基斯坦现在可以独立制造出像中国的短程m-11一样的单级导弹，但是他们在制造750千米（470英里）射程的shaheen1导弹和2500千米射程的shaheen2导弹的时候还需要帮助。