cold-end

例句：

1. 1.The cold-end of the pipe is where the water comes out.
   管道的冷端是水流出的地方。
2. 2. The cold-end of the pipeline needs to be sealed to prevent leaks.
   需要密封管道的冷端以防止泄漏。
3. 3. The cold-end of the circuit board is where the power supply connects.
   电路板的冷端是电源连接的地方。