英语词汇“semibright coal”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	semibright coal
释义	semibright coal semibright coal [′sem·i‚brīt ′kōl] (geology) A type of banded coal defined microscopically as consisting of between 80 and 61% bright ingredients such as vitrain, clarain, and fusain, with clarodurain and durain composing the remainder.
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