常見(jiàn)例句雙語(yǔ)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(shí)螺母沒(méi)有托住絲桿以及整個(gè)刀架部件的重量，由于摩擦阻力的作用而不下落。 返回 screw without nut