an emery wheel

• 砂轮

an emery wheel的用法和样例：

例句

1. An emery wheel is the modern variation of a grindstone.
   砂轮是现代的磨石。
2. All that can be helpful for the normalization design of UHSG wheel.
   从而为我国超高速砂轮的标准化设计提供一定的依据。