船用螺旋桨调距机构(Pitch adjustment for boat propeller)
船用螺旋桨调距机构(Pitch adjustment for boat propeller)
船用螺旋桨调距机构...
船舶螺旋桨螺距调节机构(Pitch adjustment for boat propeller)
船舶螺旋桨螺距调节机构(Pitch adjustment for boat propeller)
船舶螺旋桨螺距...
Canfield关节机构(Rotation transmission of Canfield joints)
Canfield关节机构(Rotation transmission of Canfield joints)
Canfield关节机...
可调整曲柄半径的机械机构(Mechanism for adjusting crank radius )
可调整曲柄半径的机械机构(Mechanism for adjusting crank radius )
可调整曲柄...