A demonstration of the basic structure of a hydropower station and its operating principles.
演示水力发电站的基本结构和工作原理。
As the basic service place, passenger transport station holds an important position.
汽车客运站做为道路运输业的基础服务场所，地位非常重要。
As the basic service place, passenger transport station holds an important position.
汽车客运站做为道路运输业的基础服务场所，地位非常重要。
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