可调螺距式 adjustable-pitch ; pitch

可调螺距 adjustable pitch ; controllable pitch

可调螺距螺旋桨 [船] [航] adjustable propeller ; CP propeller ; adjustable pitch propeller

可调螺距风机 controllable pitch fan

调螺距油泵 pitch control oil pump

调螺距蜗轮轴 pitch control worm gear shaft

调螺距联杆 pitch control link

调螺距手柄 pitch control handle

调螺距机构 pitch changing system ; blade adjustment mechanism ; hub mechanism