Warning: file_put_contents(/home/www/wwwroot/zidian/69228.com/cache/9f40cf0a6d687d9ae390102bb40d64ae.txt): failed to open stream: No space left on device in /home/www/wwwroot/zidian/69228.com/index.php on line 55 毛片免费视频播放,美日韩无码国产,欧美成精品导航
The result showed that satisfactory results could be obtained by using thionyl chloride as the chlorinating agent and bexanolactam as the catalyst. 結(jié)果表明,在己內(nèi)醯胺存在下,用氯化亞碸氯化法是一種較理想的制備途逕。