surface cleaning

例句：

1. 1.The surface of the table was cleaned thoroughly before use.
   使用前，桌子的表面被彻底清洁。
2. 2.The factory needs to ensure its surfaces are regularly cleaned to prevent contamination.
   工厂需要确保其表面定期清洁，以防止污染。
3. 3. The surface cleaning process involves using abrasive materials to remove dirt and grime.
   表面清洁过程涉及使用磨料材料去除污垢和污渍。