low calorific value of coal
... 煤车注水机 water injector for coal train 煤的低位发热量 low calorific value of coal 煤的分类法 classification of coal ...
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Brown coal is low calorific value coal. Now most of such coal is borne directly, its processing and utilization have certain limitation and hasn't been fully developed and utilized.
褐煤属低热值煤，现多以直接燃烧方式，褐煤的加工利用还具有一定的局限性，还没有完全开发利用。
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