- 天然: natural; native; living
- 铂铱合金: platinum-iridum alloy; plati ...
- 铂铱合金: iridioplatinum; platiniridium; platinoiridium; platinum iridium alloys; platinum-iridum alloy; platinumiridiumalloy
- 铂铱合金计: iridoplatinum needle
- 天然铂: native platinum; platina
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