| 单词 | noble metal |
| 释义 | noble metalSEE SYNONYMS FOR noble metal ON THESAURUS.COM nounany of a number of metals, as gold, silver, mercury, or platinum, that resist oxidation when heated in air, and solution by inorganic acids. Origin of noble metal1350–1400; Middle English: precious metal Words nearby noble metalnoble, noble art, noble fir, noble gas, nobleman, noble metal, noble-minded, noble opal, noble rot, noble savage, noblesse Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 |
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