The development of these fresh water systems is clearly worth considering . 发展这样一些淡水系统显然是值得重视的。
The main focus of this manual is the management of fresh ground water resources . 本指南的主要中心是地下淡水资源的管理。
The hydrodynamic head is provided by influx of fresh water from the interior of tropical jamaica . 水压头是由处于热带的牙买加内地流入的淡水提供的。
Among the inland bodies of water are an infinite variety of fresh and saline lakes and marshes . 内陆水域中有无数种类的淡水和咸水湖泊，沼泽和湿洼地。
One source is by desalination-taking the salt out of salt water to make it drinkable . 淡水的来源之一是使水淡化--把含盐的水中的盐份去掉，使之能够饮用。
The salt water, being more dense, flows upstream under the fresh water which is flowing downstream . 淡水在上层向下流动，比重更大的盐水在下层逆流向上。
Both marine and freshwater fisheries are beset by a number of very serious human impacts . 无论海洋渔业还是淡水渔业，都为人类造成的一系列严重影响所困扰。
As a result, freshwater animals live there at depths greater than anywhere else on earth . 因此，淡水动物在这个湖里比在世界上其他任何地方都能在更深的水中存活。
The oceans are vast surface features we can at present recover only a very minor amount of fresh water from oceans . 海洋如此之大，但在目前，我们只能从海洋中取得极少量的淡水。
The harvest of wild species in the oceans and fresh waters of the earth appears to be approaching its maximum sustainable limit . 对地球上海洋和淡水中野生种的捕捞看来已达到其可维持的极限。
