基本解釋蝸桿；無止螺旋；螺旋桿詞組短語短語endless tangent screw sextant 無限正切螺絲型六分儀;[水運(yùn)]微調(diào)螺桿六分儀endless tangent screw [水運(yùn)]微調(diào)蝸桿螺釘endless s screw 蝸桿elevating endless screw 升降蝸桿endless screw worm 蝸桿endless screw更多詞組專業(yè)釋義經(jīng)濟(jì)學(xué)蝸桿