“gravity classification”的概念、定义、翻译、参考文献-科学参考

单词	gravity classification
释义	gravity classification [`grav·ǝd·ē ´klas·ǝ·fǝ¦kā·shǝn] ^{MINING ENGINEERING} The grading of ores, or the separation of waste from coal, by the differences in specific gravities of the substances.
随便看	Protosuchia Prototheria prototroch prototrophic prototropy Prototrupoidea prototype protoxylem Protozoa pile beacon pile bent pile cap pile dike pile dolphin pile driver pile extractor pile formula pile foundation pile hammer pile lighthouse pile shoe pileum pileup pileus pile weave

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