The paper states a control strategy implementing different control regulation in different phase (coarse, fine and precision tuning) for enhancing the thermal efficiency of combustion of boiler.
文中提出分阶段(粗调、细调和精调)实施不同控制规则的控制方案，用于提高锅炉燃烧的热效率。
To enhance the efficiency of mine fire control, the technology of three-phase foam for preventing spontaneous combustion of coal in goaf was developed.
针对目前煤矿防灭火技术与材料存在的一些不足，研制了一种用于防治采空区煤炭自燃的三相泡沫材料。
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