“precious metal”的概念、定义、翻译、参考文献-科学参考

单词	precious metal
释义	precious metal [`presh·ǝs `med·ǝl] ^METALLURGY A relatively scarce, valuable metal, such as gold, silver, and members of the platinum group.
随便看	lee tide lee trough leeward leeward tidal current leeward tide lee wave leeway LE factor left bank left-continuous function left coset left-hand left-hand derivative left-handed left-handed coordinate system left-handed curve left-hand limit left-hand polarization left-hand rule left-hand screw left-hand taper left identity left-justify left-laid left lateral fault

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