There are hundreds of different species of eel, all of which can be roughly divided into two groups according to their habitat: saltwater and freshwater.

鳗鱼的种类有数百种，根据其栖息地大致可以分为两类：咸水鳗鱼和淡水鳗鱼。

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If you do not put pressure on in this film separated by saltwater and freshwater, fresh water to salt water to live there automatically infiltration.

如果不施加压力，用这种膜隔开咸水和淡水，淡水就自动地住咸水那边渗透。

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The MECs use something called "reverse electrodialysis" (RED), which refers to the energy gathered from the difference in salinity, or salt content, between saltwater and freshwater.

微生物电解电池涉及一种被称为“反渗析”原理，利用盐水和淡水里的盐度即盐含量差，产生能量。

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They served him on gold plates with gold silverware, and he had huge ponds stocked with not only freshwater fish but saltwater fish.

因为子爵用金盘子及金银器皿来款待他,在他的城堡外面有一个巨大的池塘,里面除了河鱼,甚至还有海鱼

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They don't require freshwater to flourish, and can thrive off saltwater or wastewater, making sewage farms a natural habitat.

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The runoff from 19 million tons of hog waste produced annually in Eastern North Carolina from the hog factories has polluted Abermarle Sound, the largest freshwater sound in the country, and adjacent Pamlico Sound, the largest enclosed saltwater sound.

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