coil coating

例句：

1. 1. The wire was coatedwith a layer of oil to protect itfrom corrosion.
   电线被涂上一层油以保护它免受腐蚀。
2. 2. Thecoil coating on the tire is designed toimprove traction and durability.
   轮胎上的线圈涂层设计用来提高牵引力和耐用性。
3. 3. The coil coating on the metal surfacehelps to prevent rust and maintain its appearance.
   金属表面的线圈涂层有助于防止生锈并保持其外观。