“pitchstone”的概念、定义、翻译、参考文献-科学参考

单词	pitchstone
释义	pitchstone [`pich´stōn] ^GEOLOGY A type of volcanic glass distinguished by a waxy, dull, resinous, pitchy luster. Also known as fluolite.
随便看	troughing rolls trough plane trough reef trough surface trough valley trough washer trout Trouton-Noble experiment Trouton's rule trowel troweling machine troy ounce troy pound superadiabatic lapse rate superaerodynamics superalloy supercalendered finish supercalendering supercapillary interstice supercavitating propeller supercentrifuge supercharge method supercharger supercharging superchip

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