calorific capacity of natural gas

例句：

1. 1.The energy produced by the solar panels has a high calorific capacity.
   太阳能板产生的能源具有很高的热值容量。
2. 2. The efficiency of the engine is directly related to its calorific capacity.
   发动机的效率与其热值容量直接相关。
3. 3. The calorific capacity of the fuel is an important factor in determining its performance.
   燃料的热值容量是决定其性能的重要因素。