base metal

名词 base metal:

1. a metal that is common and not considered precious

1. A base metal.
   一块不纯的金属
2. A medieval chemical philosophy having as its asserted aims the transmutation of base metals into gold, the discovery of the panacea, and the preparation of the elixir of longevity.
   炼金术，炼丹术中世纪的一种化学哲学。其声称的目标是将一些基本金属转变为金子，发现万灵药及制备长生不老药
3. The supposed conversion of base metals into gold or silver in alchemy.
   转变在炼金术中假想的从贱金属到金或银的转变
4. The relative degree of mixture with a base metal; fineness.
   成色，纯度和基本金属的相对混合程度; 纯度