低热值燃料 meaning in Chinese

low calorie fuels

The thermal efficiency analysis of low heat value fuel in the gas - steam combined cycle installation
蒸汽联合循环的低热值燃料热经济性分析
Preliminary discussion on the feasibility for development of low heating - value fuel at bakuanhe coal preparation plant
巴关河选煤厂开发低热值燃料煤的可行性
Adjustment strategy and performance analysis of gas turbine system when burning medium and low heat value fuel
燃烧中低热值燃料时燃气轮机系统的应对方案及其性能分析