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的恒星，这颗恒星上的气候十分极端，雨水竟铁水。

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

旧的炼钢方热铁矿石使其燃烧，然后用氧气净化溶化的铁水。

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

有的有棉花糖的密度，有的像雨滴的铁水。

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的原因，铁水的运动必须以某种方改变以反转磁场。

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

老城墙被复建铁水就被抛向这些老城墙正薛先生的先祖创造这项技艺。

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项危险的行当，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，地球甚至有磁场的原因都与外核中的铁水有关。

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

铁水的运动， 连同一些复杂的物理现象，通过一种叫做发电机效应的东西产生磁场。

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，居民们上演一场壮观的“烟花”表演，他们将熔化的铁水扔向冰冷的石头城墙，产生火花。

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.

铁水已经烧大约45分钟，看着也非常热但在火花飞溅之前，薛先生需要穿上防护服。