The exterior of this device is made of ferrous material.

这个设备的外表是由含铁材料制成的。

Ferrous substances are common in daily life.

日常中含铁的物质很常见。

There are many oxides of iron, such as iron trioxide, iron tetroxide, ferrous oxide and so on.

铁的氧化物很多，如三氧化铁，四氧化铁，氧化亚铁等。

Those are ferrous compounds.

这些是含铁化合物

Ferrous iron reduces to ferric iron.

二价铁能还原成三价铁。

Carbon is found in almost all ferrous metals.

几乎所有的黑色金属中都含有碳。

The action mechanism of ferrous ion was studied.

并探讨了亚铁离子的作用机理。

The E6 uses the "Fe," BYD's lithium-ion ferrous phosphate battery.

E6使用的是“铁电池”，即比亚迪的磷酸铁锂电池。

Welders operate welding equipment to weld ferrous and non-ferrous metals.

焊工操作焊接设备焊接亚铁金属和有色金属。