quadrant dividers

例句：

1. 1.The printer needs a quadrant divider to ensure the paper is evenly distributed across the page.
   打印机需要四分之一分隔器来确保纸张均匀分布在页面上。
2. 2.The engineer used a quadrant divider to measure the angle of the beam accurately.
   工程师使用四分之一分隔器来准确测量光束的角度。
3. 3. The carpenter used a quadrant divider to mark the center of the tabletop.
   木匠使用四分之一分隔器来标记桌子的中央。