本文选取四川红色旅游作为红色旅游开发的实践案例。

The thesis chooses red tourism of Sichuan as the case of studying the practice of red tourism development.

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因此对四川红层的物理力学指标进行深入系统研究具有重要的意义。

Then it is important to study the physical and mechanical indexes on red strata in Sichuan Province.

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2011年10月18日，四川红原县，一个小僧侣正走过寺院的门前。

This picture taken on October 18, 2011 shows ayoung monk walking past the door of a monastery in Hongyuan county in China's Sichuanprovince.

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