海水和淡水棘鱼可以在接触区杂交。
Marine and freshwater stickleback can hybridize in contact zones.
盐水比淡水更具有传导性。
盐水比淡水浮力大。
岛上缺少淡水。
由于淡水供应充足，她活了下来。
处理废水是为我们提供淡水的一种好方法。
Treating wastewater is a good way to provide fresh water for us.
据说到2050年世界上的淡水将会耗尽。
It is said that the world would run out of fresh water in 2050.
他们得不到淡水和电力；他们什么也得不到。
They can't get fresh water, electricity; they can't get really anything.
淡水养鱼大有可为。
这不仅仅是淡水。
鲸鱼起源于大约六千万年前亚洲的淡水湖泊和河流。
Whales originated in the freshwater lakes and rivers of ancient Asia about sixty million years ago.
研究淡水鱼精巢中的核蛋白和鱼精蛋白的提取工艺。
The extraction process of nucleoprotein and protamine from freshwater fish spermary was studied.
与海洋生境不同的是，淡水生境的环境条件变化很大。
The environmental conditions of freshwater habitats, unlike those of ocean habitats, are highly variable.
当我们的淡水来源被污染，我们就不能再使用这些水。
When our sources of fresh water get polluted, we can no longer use this water.
如果所有的淡水都用完了，对人类来说将是一场灾难。
It would be a disaster for humans when all the fresh water were used up.
绝大多数人类挤着生活在山谷中，依靠淡水维系生存。
Humans overwhelmingly live in valleys, and on supplies of fresh water.
农业是水资源密集型产业，占全球淡水消耗的近70%。
Agriculture is a water-intensive business, accounting for nearly 70% of global fresh water consumption.
这里最大的难题就是灌溉，因为这消耗了世界上70%的淡水。
The biggest challenge here is irrigation, which consumes 70% of the world's fresh water.
野生动物园里有很多生活在淡水湖的鳄鱼和生活在咸水湖的鳄鱼。
The Wildlife Park has plenty of freshwater crocodiles and saltwater crocodiles.
然而，随着海水侵入淡水湿地，不断增加的盐分正在妨害稻米产量。
As the sea creeps into these freshwater marshes, however, rising salinity is hampering rice production.
我们都知道虽然地球75%都被水覆盖，但是其中只有3%是淡水。
We all know that though 75% of the earth is covered with water, only 3% of it is fresh water.
有些喜欢小水坑、稻田和动物踩踏后留下的泥潭等浅层淡水蓄积之处。
Some prefer shallow collections of freshwater, such as puddles, rice fields, and hoof prints.
然而，随着海洋蔓延至这些淡水沼泽，盐度的上升正在阻碍水稻的生产。
As the sea creeps into these fresh water marshes, however, rising salinity is hampering rice production.
在过去的一个世纪里，人类对淡水的使用以超过人口增长率两倍的速度增长。
Over the past century, human use of fresh water has increased at more than double the rate of population growth.
今天，新西兰的陶波湖是一片宁静的淡水湖，为小龙虾和徒步旅行者所喜欢。
Today, New Zealand's Lake Taupo is a serene sheet of fresh water, beloved by crayfish and hikers alike.
虽然地球的75%被水覆盖，但只有大约2%是来自河流、湖泊、冰雪的淡水。
While 75% of our planet is covered with water, only about 2% is fresh water that comes from rivers, lakes, ice and snow.
这种小植物的睡莲叶只有一厘米宽，因为它被发现生长在淡水温泉的泥泞边缘。
The tiny plant is known as the 'thermal water lily' because it was discovered growing in the muddy edges of a freshwater hot spring.
水井是更可靠的淡水来源，加州希望这些深井能解决他们严重的水资源短缺问题。
Wells are much more reliable sources of freshwater, and California is hoping that these deep wells may be the answer to their severe water shortage.
你可以看到，植物中所含的淡水会被移除掉，植物将很快失去所有的水分并脱水。
You can see the fresh water contained in the plant will be removed and the plant will quickly lose all its water and dehydrate.
对于能够接触到海水的炎热沙漠地区，一个新的温室设计可以产生淡水和冷空气。
For hot desert locations with access to seawater, a new greenhouse design generates freshwater and cool air.
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