Radical ring expansion is a new strategy to synthesize the medium-sized and even .
本文在前人的研究基础上,首次开展了α—芳酰基苯并环己酮增加一个碳原子和三个碳原子的自由基扩环和链增长反应,以及自由基加成成环反应。
The reliability increase in the use of numbrical tools;
数控机床使用中的可靠性增长
Curb the Unreasonable Increase of Medical Service Charge and Maintain a Harmonious Physician-Patient Relationship;
控制医疗费用增长 维系和谐医患关系
On the Difference of Income and Increase——Comparative Analysis of Economic Development of Shan Gan Ning and Hu Yue Lu;
收入与增长的差距——陕甘宁与沪粤鲁经济发展比较分析
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