英语语法分析

The basic characteristics of osmiridium, and its resources production and processing were discussed.

简要介绍锇铱矿的基本特征和资源状况，生产及处理工艺。

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。