基本解释珍珠岩同根派生 英汉例句Comparing expaneded AN with common AN and pearlstone,the micro air bubble distribution and its regularity in expanded AN are given which provide powerful basis... 与普通硝酸铵及珍珠岩相比较,微气泡在膨化硝酸铵内适当的分布为自敏化成功提供了有力的保证。