thermal-conductivity gas analyzer

例句：

1. 1.The thermal conductivity of the material is crucial for its performance.
   材料的热传导率对其性能至关重要。
2. 2.Thermal conductivity is a measure of how well materials transfer heat.
   热传导率是衡量材料传热能力的指标。
3. 3.Thermal conductivity can vary depending on the type of material and its temperature.
   热传导率取决于材料类型及其温度。