Warning: file_put_contents(/www/wwwroot/ppbbu/laei.cn/cache/93fc48ed526f6c44e602bd488667e159.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/laei.cn/index.php on line 58 carotenal例句_carotenal英汉例句_carotenal双解例句_按摩法牛津词典
A series of studies on reaction condition have obtained optimum condition permitting better yield(41.5%)of carotenal shows that the published literatures(10%). 研究了影响胡萝卜醛产率的因素;得到了最佳反应条件;产率甲文献报导的10%25提高到41.;5%25。