Based on the comprehensive analysis of the present environmental situation and the existing problems, the countermeasures of protecting drinking water sources in Ba nan district were proposed.

在全面分析巴南区城镇饮用水源地的环境现状及存在问题的基础上，提出了改善巴南区城镇饮用水源地环境的对策。

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Tong-Nan-Ba structure is a large hydrocarbon trapping structure in the northeast of Sichuan basin.

川东北通、南、巴构造是四川盆地内一个大型油气构造，是“七五”期间国家重点科技攻关项目之一。

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