A large number of experiment studies are performed for basalt crushed aggregate alkali activity by different test methods at site of Xiluodu hydropower station.是什么意思_A large number of experiment studies are performed for basalt crushed aggregate alkali activity by different test methods at site of Xiluodu hydropower station.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句