noble metal meaning in English

贵金属
贵重金属

Hydrogen and co have both been used for estimation of noble metal surface areas .
和CO都已用来测定贵金属的表面积。
The combination of refractory and noble metals in a single layer makes etching a formidable task .
难熔金属和贵金属组合的这一层薄膜使刻蚀成为一个艰巨任务。
Analysis on inner quality problems of noble metal jewelry
浅析贵金属首饰的内在质量问题
Verification regulation of working noble metal thermocouples
工作用贵金属热电偶检定规程
Sheathed noble metal thermocouple cables
贵金属铠装热电偶电缆

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