在利默里克左近，河流落差达33米，建有大水电站。
In limerick, near river drops about 33 meters, has a big hydropower station.
水力发电需要的经济成本低，但需要先天河流落差大，我们的河流资源有限。
The Water power electricity generation needs the economic cost is low, but needs the congenital rivers dropping variance to be big, our river resources are limited.
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