Warning: file_put_contents(): Only 0 of 6224 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/001308.com/index.php on line 55 flame strengthening例句_flame strengthening英汉例句_flame strengthening双解例句_零食美味英文词典
A suggestion was presented for strengthening research of non-halogen flame retardant in order to develop PP cable insulant with outstanding flame retardancy … 建议加强对无卤阻燃PP电缆料的研究,以开发出力学性能优异的无卤阻燃PP电缆料。