在一个案例中，业内高管发现一种号称纯金的涂层其实是一种复杂的合金，含有锇、铱、钌、铑等稀有金属。
In one case, executives discovered a coating advertised as pure gold that masked a complex alloy, which included rare metals such as osmium, iridium, ruthenium and rhodium.
逐渐地，铑和钌被镀在传统的接触材料上来延长触点寿命。
Increasingly, rhodium and ruthenium are being plated over more traditional contact materials to increase the contact life.
采用钛基钌铱铑复合涂层作为阳极，以硝酸铈和硝酸铵作为电解液，电化学法制备二氧化铈超细粉体。
Cerium dioxide ultrafine powder is prepared by electrochemical method using composite coating of In-Ru-Ir as anode, cerous nitrate and ammonium nitrate as electrolyte.
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