皮尔公立教育局(Peel District School Board)
Peel District School Board (PDSB) Chair Janet McDougald was finishing entirely her opening remarks, talking about incorporating electronic models into th...
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镍和铜矿藏中含有铂系金属的硫化物(如(Pt,Pd)S)、碲化物(如PtBiTe)、锑化物(PdSb)和砷化物(如PtAs2)。这些化合物中的铂会被少量的铱和锇元素取代。
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