Professor Wen Heng and his students found that velocity of bottom of water is too much,and found that roughened apron by waste tires can adjust velocity and low velocity of bottom of water .是什么意思_Professor Wen Heng and his students found that velocity of bottom of water is too much,and found that roughened apron by waste tires can adjust velocity and low velocity of bottom of water .在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句