coil finishing varnish

例句：

1. 1. The coil on the wire was coated with a layer of varnish to protect it from corrosion.
   电线上的线圈被一层油漆覆盖，以保护它免受腐蚀。
2. 2. The varnish on the wooden table was so smooth that it looked like glass.
   木桌上的油漆非常光滑，看起来像玻璃。
3. 3. The varnish on the furniture was applied evenly, ensuring a long-lasting finish.
   家具上的油漆涂抹均匀，确保了持久的外观。