Warning: file_put_contents(/www/wwwroot/ppbbu/80125.cn/cache/53808676c06b87ba833d35be58e61b38.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/80125.cn/index.php on line 58 Polyan例句_Polyan英汉例句_Polyan双解例句_食材鋪反向词典
The novel methods and the new chances for coal's nonfuel application are provided by coal based polyaniline.The coal based polyan... 同時,煤基聚苯胺也爲煤的非能源利用提供了新途逕和新機遇,具有一定的推廣價值。