單級旋片真空泵
single-stage
[英]['s?ɡlst'e?d?][美]['s?ɡlst'e?d?]
單級，單級的;
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.
他說盡管巴基斯坦現在可以獨立制造出像中國的短程m-11壹樣的單級導彈，但是他們在制造750千米（470英裏）射程的shaheen1導彈和2500千米射程的shaheen2導彈的時候還需要幫助。