special coal types 特殊煤种
different coal types 不同煤种
genetic types of coal 煤成因类型
genetic types of coal formation 又称含煤建造成因类型
coal deformation metamorphic types 变形变质类型
coal metamorphic types 煤变质作用类型
types of coal metamorphism 煤变质类型
genetic types of coal measures 含煤岩系成因类型
The varying law of the final volatile yield of 18 different coal types was studied at different heating rates by thermobalance.
采用热天平在不同的升温速率下对18种煤的最终挥发分产量的变化规律进行了研究。
Trial grinding of coal types constitutes a relatively reliable method for the selection of fan mills and the design of coal pulverizing systems.
采用煤种的试磨方法是风扇磨选型和制粉系统设计较为可靠的方法。
The test results also indicated that the evaluation of coal types suitable for liquefaction should include two aspects: test of coal liquefaction performance and study of optimal process conditions.
试验结果表明，液化煤种的评价应包括两方面内容：煤的液化性能试验和最佳工艺条件的研究。
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