primary crater

常見例句

雙語例句

• The primary results obtained involved the evaluation of army ballistic limit, and measurement of crater volume and crater depth.
  評定鋼靶板的背面強度極限，測量靶板彈坑容積和深度，對影響靶板抗彈性能的彈靶因素進行了分析。
• Indeed, smashing into the moon's surface is the primary objective of LCROSS (the name stands for Lunar CRater Observation and Sensing Satellite).
  事實上，與月球表面碰撞是 LCROSS（全稱為月球環(huán)形山觀測和遙感衛(wèi)星）的主要目標。
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