lower heating value

例句：

1. 1. The new energy vehicle has a lower calorific value than the traditional gasoline engine.
   新型电动汽车的热值比传统汽油发动机低。
2. 2. The researchers found that the lower calorific value of the new material made it more environmentally friendly.
   研究人员发现，新材料较低的热值使其更加环保。
3. 3. The lower calorific value of the new material means that it requires less energy to produce and transport.
   新材料较低的热值意味着它生产和运输所需的能量更少。