zero adjuster

例句：

1. 1. The zero adjuster is used to fine-tune the machine's performance.
   零调整器用于精细调整机器的性能。
2. 2. The zero adjuster ensures that the machine runs smoothly without any errors.
   零调整器确保机器运行平稳，没有错误。
3. 3. The zero adjuster was designed to make the machine more efficient and accurate.
   零调整器的设计是为了使机器更加高效和准确。