self-heating thermionic tube

例句：

1. 1. The self-heating thermocouple is a useful tool for measuring temperature in remote areas.
   自热式热电偶是一种在偏远地区测量温度的有用工具。
2. 2.Self-heating thermionic tubes are commonly used in heating and power generation applications.
   自热式热电偶在加热和发电应用中被广泛使用。
3. 3. In this experiment, we will use a self-heating thermionic tube to measure the resistance of a wire.
   在这个实验中，我们将使用一个自热式热电偶来测量导线的电阻。