Warning: file_put_contents(/home/www/wwwroot/tjuzi.com/cache/9e02cc2b773cabf15bef3b70c190af1f.txt): failed to open stream: No space left on device in /home/www/wwwroot/tjuzi.com/index.php on line 55 benzylamine例句_benzylamine英汉例句_benzylamine双解例句_橘子化妆朗文词典
Numerous improvements are obtained by employing the amine in molar excess with respect to benzyl halide, preferably in a molar ratio of 2 to 1. 通过使用相对于苄基卤为摩尔过量的胺可以得到大量改善， 优选的摩尔比为2至1。 ip.com