It reaches around 1450 degrees Celsius near the heat source.

它在热源附近达到 1450 摄氏度左右。

Around this heat source, a rich ecology of life has evolved without any sunlight at all.

以此热源为中心，在没有阳光的条件下，一个丰富的生态圈逐渐形成了。

Like I'm not gonna use electricity, not gonna use gas no assisted heat source of any kind.

就像我不会用电，不会用煤气，没有任何辅助热源。

The Earth's crust is an incredible insulator, and it keeps this massive, inexhaustible heat source beneath us invisible.

地壳的隔热效果很棒，能让这个巨大、用之不竭的地底热能来源不被注意到。

Coal is cheap and the primary heat source here, where many household incomes are as little as a few dollars a day.

煤炭价格低廉，是这里的主要热源，许多家庭的收入仅为每天几美元。

Everything in space, unless they are very close to a heat source, like our Sun, becomes cold because it constantly loses heat due to radiation.

太空中的一切事物，除非它们非常靠近热源，比如太阳，都会变冷，因为它会因为辐射而不断失去热量。

In convection, warmer molecules generally move away from the heat source and are replaced by cooler molecules which are then heated up.

在怀孕期间，较热的颗粒会远离源头 热量被较冷的分子取代以加热。

The main heat sources were the electrical heat from spacecraft components and waste heat from their nuclear power sources – the Radioisotope Thermoelectric Generators.

主要的热源是来自航天器部件的电热和来自核动力源——放射性同位素热电发电机的废热。

There are teams of innovators right now in the field that are working on figuring out how to most efficiently and effectively tap this enormous heat source beneath us.

现在有些创新团队在实地努力想办法用最有效率和效益的方式开采我们脚下这个巨大的热能来源。

Without a sustained heat source the charring of the outer layer of a big piece of timber protects the structure inside-try lighting a camp fire when you only have logs.

如果没有持续的热源，一大块木材外层的炭化会保护内部的结构——比方说当你只有原木时，试一试点燃篝火就知道了。

But convection only happens because the heat source is positioned in a way that makes the warmer water move away from it -- it’s at the bottom of the kettle.

但对流只会发生， 因为热源的位置使较热的水远离它——它位于水壶的底部。

Now, the interesting thing about radiation is that it doesn't require any kind of contact between the heat source and the object, unlike conduction and convection, both of which require matter to transfer heat.

关于辐射有趣的事情是它不需要热源和物体之间的任何接触，不像传导和对流，两者都需要物质来传递热量。

The project extracts non-radioactive steam from the nuclear power units as the heat source, and carries out a multi-stage heat exchange through stations and finally transmits the heat to households through the municipal heating pipe network.

它从核电机组中提取非放射性蒸汽作为热源，并通过电站进行多级热交换，最终通过市政供热管网将热量输送到家庭。

You need a powerful heat source to produce such a large geothermal manifestation. And as you can see from the red dots here, which are volcanoes, we don't have volcanoes in the Amazon, nor in most of Peru.

只有一个强大的热源， 才制造出如此大的地热现象。 你看到的这些红点，它们代表火山， 而在亚马逊是没有火山的， 秘鲁的大部分地区也没有火山。

Without a sustained heat source, the charring of the outer layer of a big piece of timber protects the structure inside.