At the planet's center is a huge liquid nickle-iron core.

在行星的中心是一个巨大的液态镍铁核。

And the very large asteroid, 16 Psyche, could satisfy the entire global demand for nickel-iron for several million years.

而为“灵神星”非常大的的小行星，足以满足全球几百万年的镍铁需求。

And then Thomas Edison introduced the nickel-iron battery.

然后托马斯·爱迪生推出了镍铁电池。

Nickel-iron meteorites, in other words, metal, can also look red.

镍铁陨，话说，金属，也可以看起来是红色的。

This melts the ore at more than 1,500 degrees Celsius, producing a compound of nickel and iron called nickel pig iron, or NPI, much of which is in turn used to produce stainless steel.

将矿熔化至超过1500摄氏度，产生一种称为镍生铁（NPI）的镍铁化合物，其中大部分随后被用于生产不锈钢。

The core of the Earth is thought to consist of a solid nickel-iron center with a molten outer layer.

地球的核心被认为是由一个固态的镍铁中心和一层熔融的外层组成的。

Later, he returned to the power industry and invented the nickel-iron alkaline battery.

后来，他又回到电力行业，发明了镍铁碱性电池。