Tourism development is a comprehensive activity of sociality and technological economy.
旅游开发是一项综合性的社会和技术经济活动。
Tourism development is a comprehensive activity of sociality and the technological economy.
旅游开发是一项综合性的社会和技术经济活动。
On the basis of the investigation and experimental researches, the authors made their Suggestions on the comprehensive management of the loess plateau and development of agricultural economy there.
本文以调查材料与科研成果为依据，阐述了对黄土高原地区开展水土保持综合治理与经济开发的意见。
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