A.-1.2kN/㎡
B.9.8kN/㎡
C.1.2kN/㎡
D.-9.8kN/㎡
[单选题]A.-1.2kN/㎡B.9.8kN/㎡C.1.2kN/㎡D.-9.8kN/㎡
[单选题]A.-1.2kN/㎡B.9.8kN/㎡C.1.2kN/㎡D.-9.8kN/㎡
[单选题]A.①95.45kg/h②20.89kg/hB.①99.42kg/h②21.75kg/hC.①94.55kg/h②20.89kg/hD.①95.45k
[单选题]A.2B.4C.8D.16
[单选题]A.控制阀选气关型,控制器应选反作用方向B.控制阀选气关型,控制器应选正作用方向C.控制阀选气开型,控制器应选反作用方向D.控制阀选气开型,控制器应选
[单选题]A.0.8MPa(绝),284℃B.0.63MPa,284℃C.0.927MPa(绝),284℃D.0.661MPa(绝),284℃