adjustable (blade) propeller
adjustable blade
可调叶片
可调叶片可调螺旋桨叶
动叶可调
可调节叶片
可调整叶片
可调桨叶
adjustable blade propeller pump
adjustable blade propeller runner
adjustable stationary blades
adjustable-blade axial-flow fan
axial-flow adjustable-blade water turbine
adjustment of stationary blade
diaphragm stationary blade
directly-bowed stationary blade
Hollow Stationary Blade
Stationary Blade Carrier
Stationary Blade Diaphragm
stationary blade in the last stage
stationary blade manufacture
Variable stationary blade
adjustable-voltage and adjustable-speed