英语语法分析

The content of silicate and ferronickel such meteorites in each accounted for 50%.

这类陨石中硅酸盐与镍铁合金的含量各占50%。

The device consists of an electromagnet moving ferronickel optical shutter interposed in a fiber gap, and it's actuation causes optical attenuation.

这种光衰减器是由电磁驱动插在两对准单模光纤间隙中的挡光片来实现光功率的衰减。

Therefore, the current domestic enterprises mainly produce ferronickel with nickel oxide ore by electric furnace smelting or blast furnace smelting.

因此，目前国内企业对进口氧化镍矿的处理主要是采用电炉熔炼或高炉冶炼生产镍铁。