compass corrector unit

例句：

1. 1. The engineer usedthe compass corrector unit to alignthe instruments on the ship.
   工程师使用指南仪校正器单元来校准船上的仪器。
2. 2.The compass corrector unit was designedto improve the accuracy of the navigationalinstruments.
   指南仪校正器单元旨在提高导航仪器的准确性。
3. 3. The compass corrector unitis essential for maintaining the stability of theship's positioning system.
   指南仪校正器单元对于保持船舶定位系统的稳定至关重要。