基本解釋[經濟學]無帽螺釘英漢例句雙語例句Then screw nut did not try to jack up the entire turret components and the weight, the role without friction whereabouts.這時螺母沒有托住絲桿以及整個刀架部件的重量，由於摩擦阻力的作用而不下落。screw without nut更多例句專業(yè)釋義經濟學無帽螺釘