impactors
美
英 
例句
Accompanying the orbiter, NASA's Lunar Crater Observation and Sensing Satellite will drop two impactors into the south pole of the moon.
伴随着轨道器一起,美国国家航空航天局的月球环形山观测侦测卫星会向月球南极释放两颗冲击器。
studied the working mechanism of valveless pneumatic impactors.
对无阀气动冲击器的工作机理进行研究。