短語詞組短語rolling shaft neck 輥軸頸the crack shaft neck 軸頸shaft neck damage 軸頸損傷pitman shaft neck 連桿軸頸drop -down of mine-shaft neck 井頸下沉femoral neck shaft angle 股骨頸干角humeral neck shaft angle 肱骨頸干角Neck shaft angle 頸干角;股骨頸干角neck of shaft 軸頸 返回 shaft neck