French type machinist's hammer

例句：

1. 1. The machinist was skilled at repairing machines.
   这位机工擅长修理机器。
2. 2. He is a machinist by trade and has many years of experience.
   他以机工为职业，拥有多年的经验。
3. 3. The machinist's tools are essential for the job.
   机工的工具对于这项工作至关重要。