例句與造句

1. Another new olive drab radar with a rotating dish, called the Approach Surveillance Radar ( ASR ), was within a few hours of becoming operational.
2. Sha Chau is also the site of an approach surveillance radar ( ASR ) and of a Secondary Surveillance Radar ( SSR ) for air traffic control.
3. In aviation, "'approach surveillance radar "'( ASR or SRA ) is a type of radar instrument approach provided with active assistance from air traffic control.
4. It's difficult to find approach surveillance radar in a sentence. 用approach surveillance radar造句挺難的