Sanyuan County
Sanyuan County-
Study of Protected Vegetable Production to Keep Sustained Developing in Sanyuan County
三原县设施蔬菜生产的可持续发展研究
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Characteristics of Geothermic Growth and Condition of Well Formation in Sanyuan County of Shaanxi Province
陕西三原县地热发育特征及成井条件
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Objective To learn menstrual status of adolescent girls in Sanyuan county so as to provide basis for pubertal health care for them .
目的了解青春期少女月经及有关情况，为青春期保健提供理论依据。