dental piece

• 牙科机头； 手机； 车头

dental piece的用法和样例：

例句

1. You lock the back piece with a small slider on the side of the phone.
   你锁定回到同一块小滑盖手机侧面。
2. One industry banker says the cellphone piece could sell for less than one times sales if its problems aren't fixed.
   一位了解电信行业的银行家表示，如果问题得不到解决，手机业务的售价会低于其销售额。