radial pitch variation

航海及海... ... radial piston pump 径向活塞泵 radial pitch variation 螺距径向变化 radial pitch variation 沿半径变化的螺距 ...

航海及海运专... ... radial pitch variation 螺距径向变化 radial pitch variation 沿半径变化的螺距 radial play 径向活动间隙 ...