| 释义 |
斜面xiémiàn简单机械,是一个倾斜的平面。物体沿斜面向上移动较竖直升高省力。螺旋和劈都是斜面的变形。{oblique plane; bevel (face); inclined plane used as a simple mechanical device for moving objects upward, in an attempt to save labour compared with a vertical rise. Screws and wedges are transfigurations of oblique planes.} |