hot junction

例句：

1. 1. The hot junction between the two companies is a key area for cooperation.
   两家公司之间的热点连接点是合作的关键区域。
2. 2.The scientist found a hot junction in the circuit that could be used to control the temperature.
   科学家在电路中发现了一处热点连接点，可以用来控制温度。
3. 3.The hot junction of the two metals is where the current flows most easily.
   两种金属的热点连接点是电流最容易流动的地方。