solder side

例句：

1. 1.The solder side is where the wires are connected to the circuit board.
   焊接面是电线连接到电路板的地方。
2. 2. Soldering is a process of connecting metal parts together using solder.
   焊接是一种使用焊锡将金属部件连接在一起的过程。
3. 3. During soldering, the solder side should be heated and then pressed onto the other component.
   在焊接过程中，应加热焊锡面并将其压到另一组件上。