“metric grain”的概念、定义、翻译、参考文献-科学参考

单词	metric grain
释义	metric grain [`me·trik `grān] ^MECHANICS A unit of mass, equal to 50 milligrams; used in commercial transactions in precious stones.
随便看	MAP map map chart map distance maple maple sugar maple syrup maple syrup urine disease map parallel mapping mapping radar map plotting map projection map range map reading map scale map spotting map symbol map unit map vertical maquis maraging steel Marangoni effect Marantaceae marantic

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