primary crater

常见例句

双语例句

• The primary results obtained involved the evaluation of army ballistic limit, and measurement of crater volume and crater depth.
  评定钢靶板的背面强度极限，测量靶板弹坑容积和深度，对影响靶板抗弹性能的弹靶因素进行了分析。
• Indeed, smashing into the moon's surface is the primary objective of LCROSS (the name stands for Lunar CRater Observation and Sensing Satellite).
  事实上，与月球表面碰撞是 LCROSS（全称为月球环形山观测和遥感卫星）的主要目标。
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