ballast water

例句：

1. 1.The electrical system needs to be checked for any signs of ballast water leaks.
   电气系统需要检查是否有任何负荷水泄漏的迹象。
2. 2. The engineers found that the ballast water had contaminated the air quality.
   工程师们发现负荷水已经污染了空气质量。
3. 3. To ensure the safety of the equipment, it is important to regularly check the ballast water level.
   为了确保设备的安全，定期检查负荷水水平是很重要的。