brown coal [braun kəul]

词组级别

附加级

基本释义

褐煤

参考例句

Preparation of carbon molecular sieves (CMS)brown coal by two-step carbonization method(TSC)has been investigated in this work. 本文针对高挥发分的褐煤原料，提出两步炭化法制炭分子筛概念，并考察了工艺条件和产品空分性能。 来自互联网
How to use good brown coal, to the economy of these areas development has main effect. 如何用好褐煤，对这些地区的经济发展有重要作用。 来自互联网

推荐阅读