3- Methyl-3-(1′-nitroethyl)-4-ethoxycarbonylcyclohexanone(Ⅰ) was synthesized through the Michael addition of Hagemann′s ethylester with nitroethane catalyzed by different bases.
研究了在不同有机碱催化下,哈格曼乙酯和硝基乙烷经迈克尔加成合成3 甲基 3 (1′ 硝基乙基) 4 乙氧甲酰环己酮的反应。
Many famous landscape architects were inextricably affected by this social revolution, two of whom were Richard Haag and Robert Smithson.
本文介绍了在美国1950年代后期进入后工业时代的背景下,成长起来的两位著名景观建筑师理查德·哈格和罗伯特·史密森。
Entropyand the New Landscape—— The Landscape Design of Hargreaves;
熵与开放式新景观——哈格里夫斯的景观设计
Time geography was originally developed by Swedish geographer, Torsten Hgerstrand and his associates at the Lund University, which first applied study using time geographical approach was a computer simulation model of daily activity programmes in urban planning.
时间地理学是瑞典地理学家哈格斯特朗及其领导的隆德大学研究小组提出的，最初应用于城市规划中的居民日常活动与设施规划的计算机模拟模型中。