grinding teeth

• 磨牙

grinding teeth的用法和样例：

例句

1. The child grinds his teeth in his sleep.
   这孩子在睡眠中磨牙。
2. All night he grinds his teeth together, keeping me awake.
   他一晚上都在磨牙，弄得我睡不着觉。
3. In this paper, the moving laws at any point of meshing discharge are stuied about internal gears E.D.M. grinding.
   从微观角度研究内齿轮电火花磨齿任意啮合放电处形成的放电通道中等粒子体的运动规律。