Take away trees, and there's less transpiration.

树木变，腾作用就会减。

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

这样它们就不会因为腾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腾作用来进行降水再循环。

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

最终，发和植物腾作用会将水分释放到气中，再次成为降水。

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

这种发，叫作腾作用，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.

要理解这一点，首先，你需要解一个叫做腾作用的过程，有时也叫散作用。

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

要完成这样艰巨的任务，木质要依赖于三种力量：腾作用，毛细作用和根压。

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，它们会在一个叫腾作用的过程中通过树叶把水气释放进空气中。

However, this student spelled equipment wrong, concerns wrong, there's a problem with the spelling of procedure, injury, sunlight, transpiration and weight.

但是，这个同学把equipment拼错，concerns错，procedure、injury、sunlight、transpiration和weight的拼写有问题。

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

Look, here's a picture of part of the Amazon rainforest, you'll notice you can barely see anything through the layer of numerous small clouds created by transpiration.

看，这是一张亚马逊雨林一角的照片，你会注意到透过由腾作用产生的无数小云层，你几乎看不到任何东西。