The trace element Rh exists mainly in native platinum, platinum-iron alloy and Pt-containing osmiridium.
主要矿物是自然铂矿、铁铂合金、钌铱锇矿、等轴锇铱矿和铱锇矿。
The structure and specifications for agitator made of Mo alloy clad with Pt Rh, as well as the fabrication process and the reward of using the products are presented.
介绍了铂铑包覆钼合金搅拌器的结构与技术要求，以及搅拌器的制作与使用效果。
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