aerospace and defense中文什么意思
- 国防航空
- aerospace: n. 大气圈及其以外的宇宙空间。 a ...
- defense: n. 〔美国〕 = defence. ...
- aerospace defense: 对航空空间和外层空间防御
例句与用法
- 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、航天和国防领域使用的滚动轴承工作的条件都极其苛刻,其工况主要为高速、高温、重载。