可控可逆螺桨 controllable-reversible pitch propeller

可逆螺旋桨 reversible propeller

可逆螺距螺旋桨 reversing propeller ; reversible propeller

变距可逆转螺旋桨 variable pitch reversing propeller

可变逆距螺旋桨 controllable reversible pitch

可逆式螺旋桨 reversible airscrew ; negative thrust propeller

逆转式桨叶 counter-rotating peddle