Warning: file_put_contents(/www/wwwroot/zidian/biehu.cn/cache/55e64239d16064c6e5b7bab055b3285a.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/biehu.cn/index.php on line 58 pearlstone例句_pearlstone英汉例句_pearlstone双解例句_甲百汇小鸡词典
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。