虽然在有效合理利用现有水源上还有许多工作需要做，但是随着世界人口的增长和水供应的缩减，海水淡化会越来越受到人们的青睐。
Far more must be done to use our existing water more efficiently, but with the world's population escalating and the water supply dwindling, the economic tide may soon turn in favor of desalination.
海水脱盐法不可避免地遗留下浓缩的盐水，它会破坏环境，甚至影响淡水供应。
Desalination inevitably leaves behind a concentrated brine, which can harm the environment and even the water supply itself.
核反应堆活性区需要水来冷却，而海啸切断了冷却系统的电力供应，各种应急措施相继失效，迫使操作人员引海水灌入反应堆以降低其温度。
The nuclear cores need water to cool them down, and the tsunami swamped Fukushima and initially cut off electricity powering the cooling systems.
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