Astronomers have observed a distant planet with conditions so extreme that probably rains molten iron.

天文学家观测到一颗遥远恒星，这颗恒星上气候十分极端，雨水竟是铁水。

To make steel the old-fashioned way, you blast iron ore with heat and purify the resulting molten metal with oxygen.

旧炼钢方式是加热铁矿石使其燃烧，然后用氧气净化溶化铁水。

Some have the density of cotton candy, and others rain molten iron.

有有密度，有像雨滴铁水。

In the foundry, she saw hot liquid iron being poured to make the machines. She remembered this for years to come.

在铸造厂里，她看到灼热铁水被入制成机械。今后几年她都一直记得这个画面。

And for reasons still unknown to scientists, the molten iron's motion must somehow change to reverse the magnetic field.

由于科学家尚不清楚，铁水运动必须以某种方式改变以反转磁场。

The old city walls have been recreated and throwing molten iron onto those ancient walls was where Mr. Xue's forefathers invented the art.

老城墙被复建起来了铁水就是被抛向这些老城墙正是薛先生先祖创造了这项技艺。

During the 13th Five-Year Plan period, the container rail-water intermodal transport volume grew by an average of over 23% annually.

集装箱铁水联运量“十三五”期间年均增长超过23%。

Creating a light show out of molten iron is a dangerous business, but Mr Xue has agreed to show me how it is done.

用热熔铁水打出光耀是项危险行当，但薛先生同意为我展示这一技艺。

Well, the reason that the Earth even has a magnetic field has to do with the molten iron in the outer core.

好吧，地球甚至有磁场都与外核中铁水有关。

And the motion of that molten iron, along with some complicated physics, generates a magnetic field through something called the dynamo effect.

铁水运动， 连同一些复杂物理现象，通过一种叫做发电机效应东西产生了磁场。

In Hebei's Nuanquan town, residents put on a spectacular " firework" show by throwing molten iron against a cold stone city wall to create sparks.

在河北暖泉镇，居民们上演了一场壮观“烟”表演，他们将熔化铁水扔向冰冷石头城墙，来产生火。

The molten iron has been cooking for about 45 minutes and it is looking pretty hot but, before we let any sparks fly, Mr Xue has to get into protective clothing.

铁水已经烧了大约45分钟了，看着也非常热了但在火飞溅之前，薛先生需要穿上防护服。