Most heat loss occurs when unprotected surfaces radiate heat away from the body.

大多由于体表未经防护而向体外放射。

The more you give away, the colder you feel.

的越多，你就感觉越冷。

In the process, he uncovered numerous lost works, almost half of which were written by African-American women.

在研究过程中，他发现了大的的文学作品，其中几乎一半都是美国黑人女性写的。

Since their heads were exposed to the cold, around half of their body heat escaped that way when resting - not moving or doing anything active.

因为他们的头暴露在冷空气中，他们身体大约一半的在静息时 —— 不动或什么事情都不做——就那样了。

The money that a man has, he may lose.

人的钱财去，而且可能在急需之时偏偏殆尽。

Likewise, if you wanted to raise body temperature, vasoconstriction reduces blood flow, which means less heat gets lost through the surface of the skin.

同样，如果你想提高体温，血管收缩减少血液流动，通过皮肤的相应减少。

It is lost in a number of ways.

它以多种方式。

The Milu deer were lost, never to be seen in the area again.

原来在皇家猎苑的麋鹿了之后再也没有人看过它们的身影。

Well, all land plants lose water when the pores on their leaves open up during photosynthesis, and this evaporation draws more water up through their stems.

所有陆生植物在进行光合作用时，水分从叶片上打开的气孔，蒸腾的作用拉升更多水分进入树干。

Think of heat as an actual quantity of stuff: . The more you give away, the colder you feel.

如果把当作一个有重的物体，的越多，你就感觉越冷。

But Mars' atmosphere is about 100 times thinner than Earth's, so heat from the sun can easily escape.

但火星的大气层比地球的大气层薄 100 倍左右，因此来自太阳的很容易。

They all hoard water, storing it in swollen stems and protecting it behind a barricade of spines.

它们肥硕的茎干有储水功能，叶片特化成刺以防止水分。

It seems that heat loss - the total heat transferred away from something, is linked to the surface area or total area of the body's outer surfaces when exposed to the cold.

似乎 —— 从某物传送出去的总 —— 跟表面积或身体暴露在寒冷之中的外部总面积有关。

In most fishes, this heat would be lost back out into the ocean through the gills.

大多数鱼类的通过鳃到海洋里了。

A large surface area to volume ratio also helps to keep them cool because heat has more places to escape from, but camels have adapted to tolerate body temperatures of up to 42 degrees Celsius.

较大的表面积与体积比也有助于保持凉爽，因为有更多的地方可以，但骆驼已经适应了高达 42 摄氏度的体温。

In that case, a 50% heat loss from the head, which only makes up 7% of the body's surface area, seems like an overestimation.

在那种情况下，50% 的只来自于占身体表面积 7% 的头部个说法似乎有点高估了。

It can be lost as heat during respiration, or it can be lost in waste materials such as feces.

它可以在呼吸过程中作为，也可以在粪便等废物中。

According to this view, heat loss - meaning the total amount of heat transferred away from something through its surface, is proportional to body surface area.

根据个观点， —— 指的是某物通过其表面所传送出去的的总，跟身体的表面积成比例。

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

所以你身体一半的通过头部个说法就慢慢变成了一个流行的迷信。

Wow! This question really is blowing hot and cold - now I have no idea how much heat is actually lost from the head!

哇！个问题真的是反复无常 —— 现在我已经不知道实际上有多少从头部了！