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。
This system can carry out four functions as data base management, planning water use, water allocation in canal system and summation of planning water use.
该系统可以实现：灌区数据管理、灌区用水计划、灌区渠系水量调配和灌区计划用水总结四项功能。
This system can carry out four functions as data base management, planning water use, water allocation in canal system and summation of planning water use.
该系统可以实现：灌区数据管理、灌区用水计划、灌区渠系水量调配和灌区计划用水总结四项功能。
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