Since 1930s the US Army Corps of Engineers has built and operated a string of 8 hydropower stations along the lower Columbia and Snake River and adult and juvenile salmon passages are maintained with various measures.
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美
自20世纪30年代起,美国陆军工程师团建设并运行哥伦比亚河及斯内克河下游的8座梯级水电站,这些水电站通过各种工程措施维持鱼类洄游通道。
单词 Since 1930s the US Army Corps of Engineers has built and operated a string of 8 hydropower stations along the lower Columbia and Snake River and adult and juvenile salmon passages are maintained with various measures. 的词典定义。@海词词典-最好的学习型词典
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