“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.
随便看	nuisance parameter null null allele nullary composition null-balance recorder null cell null character null cone null-current circuit null-current measurement null detection null detector null geodesic null hypothesis null indicator nullity null matrix null method null modem cable null reference system null sequence null set null space null surface null vector

科学参考收录了103327条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。