A geographical information system containing details of household water use and sanitation in the villages was built using data obtained by a global positioning system survey.

采用全球定位系统调查获得的数据，建立一个地理信息系统，包含村庄中家庭用水和卫生用水的详细情况。

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Survey the water distribution and sanitation system in temporary shelter areas.

调查临时避难区域的水分配和公共卫生系统。

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The composition, survey method and design characteristic of the sea water hydraulic pump test stand's hydraulic system are introduced.

本文主要介绍海水液压泵试验台的液压系统组成、测试方法及其设计特点等内容。

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