We were building a hydro-electric station last winter.
去冬我们在修水电站。
It is the largest hydro-electric power station and dam in the world and has cost more than any other construction project in history.
它是世界上最大的水电站，比历史上任何工程都要耗资巨大。
This paper presents a better calculation approach of peak-valley electric energy for accurately evaluating economic-effectiveness of small hydro-power station in order to raise the design quality.
为了正确评价小水电站的经济性，提高其设计质量，提出了一种较好的峰谷电量计算方法。
We've arranged a visit to a hydro-electric power station for this afternoon.
我们安排好今天下午参观一个水电站。
We've arranged a visit to a hydro-electric power station for this afternoon.
我们安排好今天下午参观一个水电站。
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