Le Chatelier thermocouple

例句：

1. 1. The LeChatelier thermocouple is used to measure the temperature gradient across a material.
   勒夏特列热电偶用于测量材料的温度梯度。
2. 2. In the experiment, the Le Chatelier thermocouple was used to detect changes in temperature.
   在实验中，使用了勒夏特列热电偶来检测温度的变化。
3. 3.The Le Chatelier thermocouple was crucial in determining the optimal operating conditions for the device.
   勒夏特列热电偶对于确定设备的最佳运行条件至关重要。