medium solder

例句：

1. 1. The engineer used a medium solder to attach the circuit board to the motherboard.
   工程师使用中等焊料将电路板连接到主板上。
2. 2.The technician applied medium solder to the joints of the screws to ensure they would not come loose.
   技术员在螺丝的接合处涂上了中等焊料，以确保它们不会松动。
3. 3. The manufacturer recommends using medium solder for assembly work to prevent damage to delicate components.
   制造商建议在装配工作中使用中等焊料，以防止对敏感元件造成损害。