短语词组短語impulse type steam turbine 沖動式汽輪機multistage impulse steam turbine 多級沖擊式汽輪機impulse -type steam turbine 沖動式汽輪機impulse train type steam turbine 沖動式汽輪機impulse interference wave steam turbine 沖動式汽輪機 返回 impulse steam turbine