常见例句雙語例句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.滾筒線按一定角度傾斜固定在貨架橫梁上，托磐從高耑放入，沿滾筒線靠本身重力下滑。 返回 high inclination-angle