platinum ore铂矿石platinumn.白金；铂adj.白金的platinum wire thermometre铂丝温度计Platinum metals resources铂族金属资源platinum-iridium alloys铂铱合金platinum-iridium needle铂铱针platinum-based catalyst铂基催化剂platinum-group elements铂族元素platinum-oxide catalyst氧化铂催化剂platinum wire thermometer铂丝温度计,铂丝温度表platinum carbonyl sulfide硫化羰络铂platinum-wire electrode铂(丝)电极