Xylem cells transport water and nutrients from the roots to the leaves.

木质部细胞将水和营养物质从根输送到叶。

He drives a truck over 70 kilometers more than once a week to transport water to thirsty animals.

这名男子每周不止一次地驾驶着一辆卡车驶过70多千米的路，将水源带给饥渴的动物们。

That's the basic facilities a town or city needs, for example: communication, transport, water, and electricity.

也就是一个城镇或城市需要的基础设施，如通信、交通、水和电力。

Through that space stretches the vascular bundle, with xylem to transport water and phloem which transport sugars after photosynthesis.

通过这个空间，延伸出维管束，木质部负责运输水，韧皮部负责在光合作用后运输糖。

If it's not in your clothes or your computer, is in the walls of your home or lining the tubes that transport your water.

因为即使它不在你的衣服和电脑里，也会在你家的墙上，或者在输水管道里。

With the ability to transport water and nutrients more smoothly, plants could grow way bigger and could better survive the dry conditions on land.

有了更顺畅地运输水和养分的能力，植物就能长得更大，也能更好地在陆地上的干燥条件下生存。

Stems are typically, though not always, found above-ground and contain vascular tissue that supports the plant and transports water and sugar throughout its body.

茎通常（虽然不总是）长在地上，含有维管组织，这些维管组织支持植物，并在整个身体中运输水和糖。

That causes air bubbles to form in the xylem, a specialised tissue that transports water from a plant's roots to its leaves.

这会导致木质部中形成气泡，木质部是一种将水从植物根部输送到叶子的特殊组织。

Scholars first recognized its dangers in ancient times, yet for the next 2000 years, we relied mainly on lead to transport our water.

学者们在古代首先认识到它的危险，但在接下来的 2000 年里， 我们主要依靠铅来输送我们的水。

The earliest wood seems to have been a mechanism for transporting water more effectively than one layer of xylem could on its own.

最早的木材似乎是一种比一层木质部更有效地输送水的机制。

Our yearly temperature cycles power air and water currents that pump nutrients from deep oceans, drive winds, transport water and a million other things.

我们每年的温度循环为气流和水流提供动力，这些气流和水流从深海中吸取养分、驱动风、输送水和其他一百万种东西。

The ability for this to transport water vapor from the tropical regions of the planet to the mid-latitudes where you and I actually live is just incredible.

它能将水汽从地球的热带地区运输到我们居住的中纬度地区，真是不可思议。

In order to guarantee Guge's survival, the King was forced to spend much of his resources transporting water to the city and to the farms that it depended on.

为保证古格王朝千古流传，国王花大量的资源将水运到王城及农田，靠其生存。

When it comes to drinking water infrastructure, that systems that clean and transport our water, the American Society of Civil Engineers gives the U.S. a grade D. In some parts of rural America, it's clear why.

说到饮用水基础设施，美国土木工程师协会认为，这些系统可以净化和运输我们的水资源，美国的土木工程师协会给出了D等级。 在美国农村的一些地区，原因显而易见。

It is thought to be caused by the melting of Greenland's ice sheets and the weakening of the great oceanic conveyor belts that transport warmer water from the tropics into the higher northern latitudes.

人们认为这是由于格陵兰岛冰盖融化和将温暖的海水从热带输送到北纬较高地区的大洋传送带减弱造成的。