Certainly, lower rainfall has cut the flow to the country's main hydroelectric dam (which provides three-fifths of its electricity) by a tenth.
当然,降雨量下滑已经减少了委国最大水电发店站大坝(供应全国电力五分之三)十分之一的流量。
That sediment flow itself, meanwhile, is shrinking; almost 50,000 large DAMS have over the past half - century cut the flow by nearly a fifth.
那些沉积物是缓慢的自动流动,而在过去半个世纪大约5万个大型水坝拦断了河流,这种流动减少了将近五分之一。
That sediment flow itself, meanwhile, is shrinking; almost 50, 000 large dams have over the past half- century cut the flow by nearly a fifth.
与此同时,泥沙流本身也在逐渐消减。 在过去半个世纪中,近50000个大型大坝截断近1/5的泥沙流。
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