无挥发性有机物质、不易燃；

No volatile organic matters; Non-flammable;

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挥发分：煤在限定条件下隔绝空气加热后，所得挥发性有机物质的产率。

Volatile: coal in a limited conditions after isolate air heating, which the production rate of volatile organics.

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挥发分：煤在限定条件下隔绝空气加热后，所得挥发性有机物质的产率。

Volatile: coal in a limited conditions after isolate air heating, which the production rate of volatile organics.

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