“perbituminous”的概念、定义、翻译、参考文献-科学参考

单词	perbituminous
释义	perbituminous [¦pǝr·bǝ`tü·mǝ·nǝs] ^GEOLOGY Referring to bituminous coal containing more than 5.8% hydrogen, analyzed on a dry, ash-free basis.
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