rib of slab

例句：

1. 1. The carpenter cut the ribs of the wooden beam to make it stronger.
   木匠把木梁的肋切掉，使其更坚固。
2. 2.The scientist discovered a new species of fish with ribs that are not visible to the naked eye.
   科学家发现了一种新物种的鱼，其肋骨肉眼不可见。
3. 3. The chef used a special technique to remove the ribs from the meat before cooking it.
   厨师使用了一种特殊技巧，在烹饪之前将肉中的肋骨去除。