Anchor interpretation of other ancient books

"Five Yinjiyun" Wu Huangqie, Yinmiao. "Jade Pian" is also a tool. "Jiao Hong · Common Books Mistakes" The iron cat on the boat called an anchor. Or say  anchor the same. The four corners of the ship’s bow and stern are crossed by iron ropes and thrown into the water to keep the ship unshakable. Popular reading Ruo Mao. Mao Miao Yin Farewell, its use is also