吡喃不是芳香的, 但眬英嗡离子是.Pyran is not aromatic, but the phrylium ion is.报道了氯化锌催化合成正辛基 -D- 吡喃葡萄糖苷反应机理的研究,考察了影响产物构型的因素.The mechanism to synthesize the octyl - D - glucopyranoside catalyzed by zinc chloride is suggested.0.2%α - 吡喃酮...
Liverpool are ready to finalise terms with Fulham boss Roy Hodgson.利物浦俱乐部即将敲定最后的主帅人选——富勒姆主教练霍奇森.So all we have to do now is finalise the delivery arrangements.那么我们现在要做的就是商定交货的安排了.India and US finalise nuclear agreement.印...
Current, the course that our country joins WTO is being accelerated.当前, 我国加入WTO的进程在加快.WTO anti - dump agreement contains the sanction to all member country of WTOs.WTO 反 倾销协议对所有的WTO成员国 都有约束力.It is meddlesome that China j...
The heaviest snowfalls today are expected in the south east.今天最大的降雪预计将出现在东南部地区。Several villages in the north have been isolated by heavy snowfalls.北方的几个村庄已被大雪封锁了.The weather station warned of severe snowfalls ahead.气象台预报...