用的理念基础，并提出旅游产品开发操作的原则、基本思路和途径。
It also raises their principles of development and operation, fundamental ideas and means.
介绍了结构设计的基本思路、原则、方法和构造措施等。
The basic thoughts, principles, methods, detailing measures are introduced for design of the structure design.
探讨了中国包装行业重组的历史机遇、内外条件、基本思路和运作原则，为我国包装行业重组提供相关理论支持。
Discussion is made on the historical opportunity, internal and external conditions, main ideas and operating principles in regrouping China's packaging industry.
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