This process is called convection, and it's an efficient way of transferring heat.

这个过程叫做对流，这是一种有效的传热方式。

Then, all of those food molecules start bumping into each other and transferring heat energy.

然后所有的这些食物分子就会开始相互碰撞并进行热能交换。

In Natrium's case, the sodium coolant transfers heat from the reactor into the molten-salt tanks.

在钠的例子中，钠冷却剂将热量从反应堆转移到熔盐槽中。

Aerogels are great for insulation, because the air inside doesn't transfer heat very well.

气凝胶是绝佳的绝缘体，因为其内部气体不太能导热。

This arrangement transfers heat to the blood that gets cycled back to the body's vital organs.

与从鳃部获得的富氧的冷动脉血擦肩而过这样就把热量通过血液传递给了。

The core, which can burn as hot as the surface of the Sun, transfers its heat to the surrounding rocky mantle.

地核的燃烧温度与太阳表面相当，它将热量传递给周围的岩石地幔。

Under warm conditions, the skin's sweat glands will secrete sweat via ducts onto the surface, transferring heat out of the body.

感到热时，皮肤的汗腺分泌的汗液将经由腺体的管道到达表面，将热量带出体外。

But while that keeps people cool  indoors, it also transfers heat back outside.

但是，虽然这能让人们在室内保持凉爽，但它也会将热量传回室外。

Aerogels are great for insulation, because the air inside doesn’t transfer heat very well.

气凝胶非常适合隔热，因为里面的空气不能很好地传递热量。

And if there’s no heat transfer between systems at all, that’s called thermal equilibrium.

如果系统之间根本没有热传递， 则称为热平衡。

– which only works if the heat is transferred super slowly.

随着热量的传播，这是有效的 仅当热量传播非常缓慢时。

But in the Carnot cycle, those processes don’t transfer heat between areas with different temperatures.

但在卡诺循环中， 这些过程不会在不同温度的区域之间传递热量。

But usually, there will be some heat transfer, because that’s how the temperature of a system changes.

但通常会有一些热传递， 因为这就是系统温度变化的方式。

Initially, air conditioners like Carrier's used chemicals like ammonia or propane to transfer heat, but these were really dangerous when they leaked.

起初，开利的空调使用氨气或丙烷等化学物质来导热，但这些化学物质泄漏时确实很危险。

But in the Carnot cycle, those processes don't transfer heat between areas with different temperatures.

但在卡诺循环中，这些过程不转移 不同温度区域之间的热量。

So we don’t use that earlier equation to describe the heat transfer while a substance’s phase is changing.

因此，当物质相变时， 我们不会使用之前的方程来描述热传递。

And if there's no heat transfer between systems at all, that's called thermal equilibrium.

如果没有热传递， 在系统中，这称为热平衡。

The fat is what is gonna transfer the oven's heat to the potato, and get it crispy on all sides.

脂肪会将烤箱的热量传递给马铃薯，并使其四面酥脆。

The hotter system will always transfer heat to the colder one.

更热的系统将传递热量 到最冷的系统。

Under warm conditions, the skin’s sweat glands will secrete sweat via ducts onto the surface, transferring heat out of the body.

在温暖的条件下，皮肤的汗腺会通过管道将汗液分泌到表面，将热量排出体外。