We know how water scarcity translates into diseases of filth.
我们知道缺水怎样转变成由水土污染引起的疾病。
The software models how water moves across the surface of the continent.
这款软件可以模拟水是如何流经地表的。
Tall water tower:I know how water falls down but I do not know how it goes up.
高高的水塔》水怎么流下来我知道，但是怎么弄上去就不大清楚了。
There's no shortage of anecdotal evidence about how water might work to control your appetite.
有足够的证据说明水是如何控制你的食欲的。
Now we have the water table so kids can explore how water moves and actually explore scientific ideas.
现在我们配水盘，则是让孩子们能够探究水是如何流动的，实际上就是探索科学思想。
This discovery could help to explain how water comes to be incorporated into rocky planets such as the Earth.
该发现有助于解释水是怎样成为地球之类石质行星的组成成分的。
Dr Marsden reckons the technique might even improve understanding of how water from melting ice caps will affect ocean currents, including the Gulf Stream.
马斯登博士估计该方法甚至可能帮助人们了解冰川融化生成的水会对洋流产生怎样的影响，包括墨西哥湾暖流。
"Our research group studies a lot of biologically inspired fluid mechanics problems, such as how snails use slime for locomotion, or how water striders walk on water, " Nasto says.
我们小组从生物界获取灵感，研究了大量相关流体力学问题，比如蜗牛如何运用黏液进行移动、水黾如何在水上行走。
With more Americans turning to bottled water believing it safer and healthier than tap water, there are growing concerns over how water is marketed, sourced and tested for safety and purity.
在美国，越来越多的人引用瓶装水，并认为瓶装水比自来水更安全、更健康。同时，对瓶装水的销售、来源和安全及纯净程度检测的担忧也越来越多。
To find out, they turned to thehigh-power X-rays generated at the Stanford Synchrotron Radiation Lightsourcein California, this time measuring how water scatters rays arrivingfrom various angles.
为了找到答案，他们用加州斯坦福同步辐射光源生成的高功率X射线，这次测量水如何散射从不同的角度照进的光线。
How did those dense southern Maya populations deal with the resulting water problem?
玛雅南部人口这么秘籍，他们是如何应对由此产生的水问题的？
Farmer John took the Marionette to the well, and showed him how to draw the water.
园丁贾恩乔把木偶带到井边，教他怎么打水。
Another critical issue and it's related to the first, to the size issue, is how far from the water should it go to get trees.
另一个关键的问题与第一个问题——即树木的大小问题有关：它需要到离水多远的地方获得木材？
How did the dolphin's clicks get transmitted from its air-filled nasal sacs into the ocean water?
海豚发出的滴答声是如何从充满空气的鼻囊传播到海水中的呢？
People usually don't pay much attention to how much water industry uses, but you may be surprised to know that industry uses 59% of the water in developed countries.
人们通常不太关注工业用水的使用量，但是你可能会惊讶地发现工业用水占到了发达国家的59%。
Consider humans as part of these ecosystems, you've probably heard about water shortages or restrictions on how much water you can use, especially in the summer time, in recent years.
考虑到人类是这些生态系统的一部分，你可能听说过，水资源短缺可能会限制你可以使用多少水，特别是近些年夏天的时候，
In the course of serving tea, the host should take careful note of how much water remaining in the kettle and in the cups of the guests.
在上茶的过程中，主人要注意茶壶和客人的茶杯里还剩多少水。
The questions become more complicated when actual volumes of water are considered: how much water enters and leaves by each route?
当考虑水的实际体积时，问题变得更加复杂：每条支流会有多少水流进及流出呢？
A group of water bugs was talking one day about how they saw other water bugs climb up a lily pad and disappear from sight.
一天，一群水生蝽在谈论它们如何看到其它的水生蝽爬上睡莲花的叶子，并从视线中消失。
People have figured out how to use water more efficiently, and communities are rethinking their priorities for water use.
人们已经找到了更高效利用水的方法，并且社区正在重新考虑他们用水的优先顺序。
You might wonder how we can tell whether fossil animals lived on land or in water, especially if only fragments are found.
你可能想知道我们如何分辨化石上的动物是生活在陆地上还是水里，特别是如果只发现了化石碎片。
Now is your chance to find out! Put both feet in, get in the water, and feel how it is to flap instead of kick.
现在是你发现的机会！双脚都伸进去，入水，感受拍打而不是踢腿的感觉。
When they get a tern or pelican to drop a fish, they plunge down and grab it off the surface of the water, which may have been how this bird got oiled.
当他们让一只燕鸥或鹈鹕扔下一条鱼时，他们会一头栽到水里，然后把鱼从水面抓起来，这可能就是这只鸟被油弄脏的原因。
The researchers figured out water stress with a computer model that calculated how much water trees were getting in comparison with how much they needed.
研究人员通过一个计算机模型计算出了水分胁迫情况，该模型将之与树木所需水分进行比较，计算出树木实际获得的水分。
Then you see how important water is in your daily life.
然后你会发现水在你的日常生活中是多么的重要。
How clear the water in the Liuxi River is!
流溪河的水多么清澈啊！
You have to touch the leaves with your hands to feel how much water is being removed.
你必须用手触摸叶子，才能感觉到有多少水分被除去了。
You have to touch the leaves with your hands to feel how much water is being removed.
你必须用手触摸叶子，才能感觉到有多少水分被除去了。
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