?顺流变距桨叶

... feasibility study行得通性研究 feathering blade顺流变距桨叶 fender护舷 ...

?顺流桨叶

... feather-way 滑键槽 feathering blade 顺流桨叶 feathering link 转动叶片拉杆 ...

?动叶片

... 导叶片 : guide blade; guide vane 动叶片 : bucket; feathering blade; moving blade ... 短叶片 : short blade ...