Warning: file_put_contents(): Only 0 of 4873 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/5678977.com/index.php on line 55 rosin activated例句_rosin activated英汉例句_rosin activated双解例句_加林查网西语词典
The important role of rosin, oil of turpentine, tannin, activated carbon of forest chemical industry in national economy are point out. 林化産業在我國民經濟中居於重要地位，在國際市場上也佔有相儅份額。