常见例句双语例句Ensure that the lathe dog is secured to the machined flat on the end of the mandrel and not on the smooth surface of the mandrel taper (Figure 7-44).确保车床轧头牢牢地固定在心轴端的机械平面上，而不是锚定在锥形心轴的平滑面上（图7-44）。 返回 end surface lathe