polishing fluid

例句：

1. 1. The technician used a special polishing fluid to clean the machine parts.
   技术人员使用一种特殊的抛光液来清洁机器部件。
2. 2.The car was polished to a shine with this high-quality polishing fluid.
   这高质量的抛光液使汽车光亮如新。
3. 3.The engineer applied the polishing fluid evenly on the surface of the metal before it was sent to the workshop for final assembly.
   工程师在将金属送往车间进行最终装配之前，均匀地涂上了抛光液。