“semibright coal”的概念、定义、翻译、参考文献-科学参考

单词	semibright coal
释义	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.
随便看	peroxisome peroxyacetic acid peroxydol perpend perpendicular perpendicular axis theorem perpendicular recording perpendiculars perpendicular slip perpendicular slope perpendicular throw perpetual calendar perpetual frost climate perpetual motion machine of the first kind perpetual motion machine of the second kind perpetual motion machine of the third kind perpetuation Perret phase Perron-Frobenius theorem Perron-Frobenius theory perry perryite persalic rock Perseids Perseus

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