摘要
在对黑龙江省旅游资源归纳分类基础上对黑龙江省旅游资源的基本特征进行了分析 ,并对旅游资源进行了初步的定性评价 ,指出了黑龙江旅游资源的吸引向性 ,为资源开发决策提供参考。
This paper classifies the tourism resources and analyses the basic characters about them in Heilongjiang province On the basis of these, it has a preliminary qualitative assess and points out the scope of attraction about the tourism resources in Heilongjiang Province It also offers a reference on how to develop resources scientifically kdy words: Heilongjiang Province; tourism resources; the scope of attraction S$$$$ Liu Chongguang Jin Yonglin (School of Chemistry and Chemical Engineering, Shanghai University)Abstract: This paper introduces the synthesis of 3RL S (C.I.Dis. Violet 77) which is a disperse dye having the structure of methoxy substituted diethyl amino group. The selection of the route and method of synthesis are discussed.
出处
《国土与自然资源研究》
1999年第4期75-78,共4页
Territory & Natural Resources Study
关键词
旅游资源
类型
特征
吸引向性
黑龙江
disperse violet 3RL S
M acetamine N·N di (β methoxyethyl) aniline
2 cyano 4 nitro aniline
alkylation
diazotization