aerospace and defense中文

• 國防航空

• aerospace:    n. 大氣圈及其以外的宇宙空間。 a ...
• defense:    n. 〔美國〕 ＝ defence. ...
• aerospace defense:    對航空空間和外層空間防御

例句與用法

1. The rolling bearing work conditions are becoming more and more sever in the space aerospace and defense fields , such conditions are usually high speed , high temperature , and heavy load
   航空、航天和國防領域使用的滾動軸承工作的條件都極其苛刻,其工況主要為高速、高溫、重載。