24小时热门版块排行榜    

CyRhmU.jpeg
查看: 1344  |  回复: 5
本帖产生 1 个 翻译EPI ,点击这里进行查看
当前只显示满足指定条件的回帖,点击这里查看本话题的所有回帖

279064210

禁虫 (小有名气)

已阅   关注TA 给TA发消息 送TA红花 TA的回帖

halibotejin

金虫 (正式写手)


279064210(金币+2): 2010-06-28 08:32:54
wypward(金币+1):欢迎新虫 2010-06-28 09:09:08
the synthesis of A and the effects of different conditions examined such as  different catalytic acidic salts, dosage of catalyst, usage of B,reaction temperature and reaction duration on the production  on the yield of A were studied in this paper . The results showed that when n(B)︰n(D)︰n(C) was 10︰1.5︰1, reaction temerature at 130 deg, and reaction time of 6 hours, the  yield of A can be higher,88.3%.
4楼2010-06-28 08:07:36
已阅   关注TA 给TA发消息 送TA红花 TA的回帖
相关版块跳转 我要订阅楼主 279064210 的主题更新
信息提示
请填处理意见