常见例句双语例句Drum line at a certain angle of inclination fixed to the shelf beam, the tray from the high-placed, along the drum line from their own gravity down.滚筒线按一定角度倾斜固定在货架横梁上，托盘从高端放入，沿滚筒线靠本身重力下滑。 返回 high inclination-angle