“karat”的概念、定义、翻译、参考文献-科学参考

单词	karat
释义	karat [`kar·ǝt] ^METALLURGY A unit for designating the fineness of gold in an alloy; represents a twenty-fourth part; thus, 18-karat gold is 18/24 or 75% pure.
随便看	back bias backblast area back bond backbone back boxing backbreak back bulb backcast stripping back check back-coated mirror backcoating back contact back course backcross backcross parent backdeep backdigger back diode back-door cold front back draft back-draft damper back echo back-echo reflection backed cloth back edging

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