A century later the picture was completely different: by then, the world had an electric industry, and a quarter of its generatingcapacity was water powered.
一个世纪后，情况完全不同了：这时，世界上已经有了电力工业，其四分之一的发电量是水力驱动的。
2
Last year generatingcapacity surged by 50%.
去年风力发电量猛增50%。
3
The dam would add a large amount of generatingcapacity.