“bright coal”的概念、定义、翻译、参考文献-科学参考

单词	bright coal
释义	bright coal [`brīt ´kōl] ^GEOLOGY A jet-black, pitchlike type of banded coal that is more compact than dull coal and breaks with a shell-shaped fracture; microscopic examination shows a consistency of more than 5% anthraxyllon and less than 20% opaque matter. Also known as bright-banded coal; brights.
随便看	director-sight system director-type computer director-type fire control directory direct outward dialing direct pickup direct piezoelectricity direct plate exposure direct pointing direct point repeater direct positive direct-power generator direct printing direct process direct product direct proportion direct quenching direct-radiator speaker direct read after write cataclastic metamorphism cataclastic rock cataclastic structure cataclysmic variable cata-condensed polycyclic catadioptric

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