短语词组短語shrouded d turbine 閉式渦輪Shrouded turbine blade 帶冠渦輪葉片;帶冠的渦輪葉片shrouded turbine impeller 蔽式渦輪攪拌器turbine shrouded moving blades 渦輪帶冠動葉片 返回 shrouded turbine