gas coal

名词 n.
中文释义

英文释义

名词 n.
  1. A bituminous or hydrogenous coal yielding a high proportion of volatile material, and therefore available for the manufacture of illuminating gas. countable,uncountable
    — It is a good gas-coal, and well fitted for steam purposes, and for use in reverberatory furnaces.

词形变化

gas coals plural
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