An Approach to the Application of the Cylinder Valve Technology in the Large-sized Water Turbines for the Xiaowan Hydropower Station是什么意思_An Approach to the Application of the Cylinder Valve Technology in the Large-sized Water Turbines for the Xiaowan Hydropower Station在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句