【单选题】在用YT-1226压力调节器中,若压力的下限值调定为0.5MPa,现要求上限值为0.58 MPa,其幅差弹簧应设定的格数为各。
【单选题】在用YT-1226压力调节器中,若压力的下限值调定为0.5MPa,现要求上限值为0.68 MPa,其幅差弹簧应设定的格数为各。
【单选题】Mr. Bush ______ gardening as his hobby shortly after he retired from the General Motor last year.
【单选题】After ________ from his illness, Mr.Smith was advised to take up gardening as a hobby. [ ]
【单选题】. After recovering from her illness, she was advised to ______ gardening as a hobby.
【单选题】在用YT-1226型压力调节器中,若压力的下限值调定为0.5MPa,现要求上限值0.68MPa,其幅差弹簧应设定的格数为( )。
【单选题】53•在用YT - 1226压力调节器中,若压力的下限值调定为0• 5 MPa,现要求上限值为0• 68 MPa,其幅差弹賛应设定的格数为 .〇