英语词汇“How many lights are there on the derrick?”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	How many lights are there on the derrick?
释义	How many lights are there on the derrick? 井架上有多少个灯?
随便看	withdr with drafting machines or arrangements Withdramal symptoms withdraual ring withdraught withdraughts withdraw with-draw withdraw a ban withdraw a bid withdraw a bill withdrawable withdrawable circuit-breaker withdrawable on demand withdrawable part withdrawable privilege with drawable switch up to 30 kV withdrawable type withdraw a boy from school withdraw a case withdraw a charge withdraw a curtain withdraw a demand withdraw aid withdrawal