名词
中文翻译：膨胀的块
同义词：
['expanded piece', 'expanding part例句：1. The engineer used a special tool to expand the bit.（工程师使用一种特殊的工具来扩张钻头。）2. The machine was designed to handle expanding bits.（这台机器被设计用来处理膨胀的部件。）']
例句：
-
1. The engineer used a special tool to expand the bit.
工程师使用一种特殊的工具来扩张钻头。
-
2. The machine was designed to handle expanding bits.
这台机器被设计用来处理膨胀的部件。
-
3. The drill bit is expanding as it cuts into the material.
当钻头切割材料时，它正在扩张。