单词	升降机--升降舵--电梯
释义	电梯；升降机；升降舵elevator
随便看	operator grammar operator group operator guidance code operator guidance indicator operator guide operator-- hamiltomian operator handler operator homomorphism operator id operator identification operator in charge operator indicator operator-indicator lights operator information area operator information area message operator information area，oia operator input operator inquiry operator instruction sheet operator-- integral operator interaction operator interface control block operator interface control block--opicb operator interface control block，opicb operator interface software