After repeated comparisons and experiments,scientists have at last chosen the high-modulus potassium silicate,or PS,as the ideal sand fixing agent.是什么意思_After repeated comparisons and experiments,scientists have at last chosen the high-modulus potassium silicate,or PS,as the ideal sand fixing agent.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句