And surface area limits how much body heat you can dissipate.

然而表面面积决定着身体的散热。

This camera detects an animal's body heat.

这个摄像机可以探测到动物的体温。

That's actually a terrible idea, according to our body heat expert.

根据我们的体温专家的说法，这是个糟糕的主意。

Exercise warms you up, but it also causes you to lose body heat.

锻炼使你暖和起来，但是它也会使你失去体温。

Many companies including thermal technics have developed infrared cameras that read body heat.

包括热工技术在内的许多公司已经开发出可以读取体温的红外相机。

That's the phenomenon known as goosebumps and it traps body heat close to your skin.

这种现象叫起鸡皮疙瘩，这可以吸收身体附近的热量。

It's bulk helps to conserve body heat and also broadens it's menu.

它的体型有利于帮助保持体内热量和扩充食物来源。

And that brings up a paradox, because creating your own body heat is incredibly expensive.

这就形成了一个悖论，因为自身产热也是极其消耗能量的。

Step 6 Wear mittens instead of gloves -- touching fingers generate more body heat than separated fingers.

戴连指手套而不是指头分开的手套——手指互相接触可以让身体产生更多热量。

Some types of snakes have infrared receptors that allow them to sense the body heat of animals.

有些蛇类有红外线感受器，这让它们能感觉到其他动物的体温。

A large mass of people in an indoor space can raise the temperature from all the body heat.

室内汇聚大量人群会导致所有人的身体温度升高。

Like modern birds and dogs, the Allosaurus must pant in an effort to expel excess body heat.

和现代鸟类和狗一样，异特龙必须大口喘气来排出体内过多的热量。

And beneath the skin, lies a layer of fat more than ten centimeters thick which helps maintain body heat.

而在皮肤下面则是一层厚度超过十厘米的脂肪，有助于维持体内热量。

When I was growing up I was told that you lose half your body heat from your head.

从小别人就告诉我头会散失身体一半的热量。

With the equivalent of a busted radiator, the elephants retained 56 to 100 percent of their body heat internally.

这时大象的体表就相当于一个破裂了的散热器，因此它体内仍保留着56%至100%的身体热量。

And so the idea that half your body heat is lost through the head slowly became a popular myth.

所以你身体一半的热量通过头部散失这个说法就慢慢变成了一个流行的迷信。

This is the salty, liquidy water that evaporates off our body and takes our body heat out into the atmosphere.

这种汗液是一种含盐的液态水，它从我们的身体上蒸发，把我们体内的热量带到大气中。

Body heat Body heat could be recorded too as another way of measuring connection.

6) 体热 体热也可以作为另一种测量连接的方式被记录下来。

Anyway, whichever answer is correct, the US army obviously thinks a large percentage of body heat escapes through the head.

不管怎样，无论哪个答案是正确的，很显然美军认为身体很大一部分热量是从头部散失的。

Ruffs were fragile, in the material used to construct them could fall apart due to hot weather, rain or body heat.

制作拉夫领的材料很脆弱，在炎热的天气、雨水或体温的作用下，领子很可能会散架。