Magnetite is the most magnetic natural metal on earth.

磁铁矿是地球上最具磁性的天然金属。

The Warner method requires only a relatively small amount of magnetic metal dust.

华纳的这种方法只需要相对少量的磁性金属粉末。

Magnetic metals like iron and steel are extracted with another magnet.

磁性金属如铁和钢是用另一个磁铁提取的。