词汇	collect semen artificially
释义	collect semen artificially 人工采精
随便看	spacecraft orbiting the earth spacecraft orientation Space Craft Orientation Control System spacecraft payload spacecraft performance analysis area spacecraft performance data tape spacecraft platform spacecraft power supply spacecraft power system spacecraft prelaunch test spacecraft products spacecraft propulsion spacecraft propulsion system spacecraft radar spacecraft reactor spacecraft recovery spacecraft recovery system spacecraft reentry spacecraft re-entry spacecraft-referenced spacecraft reliability spacecraft reliability test spacecraft remote sensor spacecraft rendezvous spacecraft rendezvous and docking