Our star is an enormous source of heat and energy.

我们的恒星是巨大的热量和能源的来源。

Io, Europa, and Ganymede are close enough to interact gravitationally, providing a source of heat for their interiors.

木卫一、木卫二和木卫三的引力相互影响，这是它们内部热量的来源。

He says it cannot be used as the primary source of heat. But he is ready to try it.

所以不能用作主要的热源。不过他说自己准备尝试下。

The general reaction for combustion requires a hydrocarbon, oxygen, and a source of heat energy.

一般的燃烧反应需要碳氢化合物、氧气和热能。

In either case, it would not be of much use as a source of heat and light for life on earth.

无论哪种情况，它作为地球上生命的热源和光源都没有多大用处。

But in the weather, it will show that a heat wave, a big source of heat is coming into your country for one day or two days.

但是在天气中会显示出有热浪袭来，一两天后很大的一股热量进入你的国家。

" Charred" meat is meat that has become black from being cooked too long or from being too close to a source of heat.

“烧焦”的肉是因为煮得太久或太靠近热源而变黑的肉。

And a fourth source of heat is from dense material like iron and nickel sinking to the center of the Earth, which warms things up due to friction.

第四个来源是铁和镍等密度大的物质向地球中心下沉时，由于它们和物质之间的摩擦而增加温度。

Because it creates virtually no emissions and  the volcano provides a constant source of heat, it's a completely renewable and clean -  if somewhat terrifying - form of energy.

因为它几乎不产生任何排放物，而且火山提供了持续的热源，所以它是一种完全可再生和清洁的——如果有点可怕——能源形式。

What you should say is that an object in space is so far from any source of heat or radiation that it ends up losing more heat than it gains which makes it cold.

你应该说的是，太空中的一个物体离任何热源或辐射源都很远，它最终失去的热量比得到的热量多，这就使得它是冷的。

A " pot" (pot) here refers to a metal container, something you cook with that is put on top of some source of heat, usually a stove, and is used to cook things like soup.

这里的“锅” （pot）指的是金属容器，你用来做饭的东西放在热源上， 通常是炉子， 用来煮汤之类的东西。

Ruth says, " Yes" – she oddly agrees with him – " but a longer cooking time kills foodborne illnesses." " Cooking time" is how long something is cooked, how long something is put in or over a source of heat.

露丝说，“是的”——她奇怪地同意他的观点——“但较长的烹饪时间可以杀死食源性疾病。 ” “烹饪时间” 是指烹饪多长时间，将某物放入热源或热源上方的时间。