煤炭地下气化是将处于地下的煤炭进行有控制地燃烧，通过对煤的热作用及化学作用产生可燃气体的过程。
我国对煤炭地下气化技术的研究取得了很大进展。
Great progress on research for underground coal gasification technology has been also obtained in China.
这标志中国在煤炭地下气化这一领域已跻身世界前列。
This marks that China in the areas of underground coal gasification has been among the highest in the world.
结果表明，煤炭地下气化方式制氢气是化石燃料制氢气的有效途径之一。
The result indicate the production of hydrogen by the UCG is one of the efficiency approach in the hydrogen making by use of fossil fuel.
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