Take away trees, and there's less transpiration.

树木变少了，作用就会减少。

This is so that they don't lose too much water through transpiration.

样它们就不会因作用而损失太多水分。

The trees in the Amazon rain forest recycle precipitation through a process called transpiration.

亚马逊雨林里的树木通过作用来进行降水再循环。

You got mosquitoes, sweaty people on the trains stinking it up. It's just nasty!

你们会有蚊子，汗流浃背的人们在火车里。太恶心了！

Eventually, evaporation and plant transpiration release water back into the atmosphere where it becomes precipitation again.

最终，发和植物作用会将水分释放到大气中，再次降水。

The earth's hydrologic cycle of constant evaporation and transpiration provides a continual supply of water from rainfall and snowmelt.

地球不发和的水文循环，降雨和融雪提供了源源不的水源。

This evaporation, called transpiration, creates negative pressure in the xylem, pulling watery xylem sap up the tree.

种发，叫作作用，在木质中产生一种负压，把液体的木质树液往树上方拉。

To understand this, first, you need to know about a process called transpiration, sometimes called the evapotranspiration.

要理解一点，首先，你需要了解一个叫做作用的过程，有时也叫散作用。

To accomplish this herculean task, the xylem relies on three forces: transpiration, capillary action, and root pressure.

要样艰巨的任务，木质要依赖于三种力量：作用，毛细作用和根压。

This means evaporation, evapotranspiration, increases dramatically, and this means our fuels will be drier, unless we get increases in precipitation.

意味着发，的速度急剧增加，也意味着燃料会变得更干，除非降水量增大。

My breath steamed up in front of me.

我的呼吸在我面前起来。

The leaves glittered and the roads steamed in the sun.

树叶闪闪发光， 道路在阳光下。

Evapotranspiration, which is a process through which the water leaves plant soil and other surfaces.

发，是水离开植物土壤和其他表面的过程。

Transpiration is just sweating, so let's just say sweat.

作用就是出汗, 所以就说出汗吧。

The tepee casts a long shadow at sunset. The teapot steams and sings at teatime.

•圆锥形帐篷在日落时投下长长的阴影。茶壶在下午茶时间和唱歌。

And at long last, we have the chiles all scorched and steaming in a covered bowl.

最后，我们把辣椒全部烧焦，放在一个有盖的碗里。

After absorbing rain through their roots, they release water vapor into the air through their leaves in a process called transpiration.

在根部吸收雨水后，它们会在一个叫作用的过程中通过树叶把水气释放进空气中。

Runoff consists of precipitation that neither evaporates, transpires, nor penetrates the surface to become ground water.

径流由既不发、不也不穿透地表地下水的降水组。

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，水分会从叶片上打开的气孔散失，些的作用会拉升更多水分进入树干。

Infiltration, evaporation and transpiration -- this has been shown to be effective and efficient in meeting federal water regulations, and is surprisingly cost-effective, too.

渗透、发和——在满足联邦水法规方面已被证明是有效和高效的，而且本效益也令人惊讶。