Warning: file_put_contents(/www/wwwroot/ppbbu/www.30232.com/cache/5dbb52ba180b561b4d6125f73bf5d4c2.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/www.30232.com/index.php on line 55 Polyan例句_Polyan英汉例句_Polyan双解例句_绍翊字体网有道词典
The novel methods and the new chances for coal's nonfuel application are provided by coal based polyaniline.The coal based polyan... 同时,煤基聚苯胺也为煤的非能源利用提供了新途径和新机遇,具有一定的推广价值。