coalbreaker

例句：

1. 1.The coal breaker is used to crush coal into smaller pieces for transportation.
   煤炭破碎机用于将煤炭破碎成小块以便运输。
2. 2.The coal breaker was designed to improve the efficiency of the mining process.
   煤炭破碎机的设计目的是为了提高采矿过程的效率。
3. 3. The coal breaker has a powerful motor that can handle large amounts of coal quickly.
   煤炭破碎机拥有强大的电动机，能够迅速处理大量的煤炭。