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通过研究超声作用下,天然河沙中SiO2在不同溶剂中的反应动力学,发现了反应中的超声辐射临界时间,揭示了超声对液－固界面反应的影响规律.“,”The critical time of ultrasound in reaction and the influent regulation of ultrasound reaction on liquidsoid reaction were found through stud of ultrasound reaction dynatnics SiO2 in sand