常见例句双语例句To this end, each drawing roller (2.1, 2.2) is associated with a separately controllable drive device (3.1, 3.2).为此给每个拉伸辊（2.1、2.2）分配一个 可单独控制的驱动装置（3.1、3.2）。ip.com 返回 separately controllable