Theamountofusablewaterhasalwaysbeenofgreatinterestinthe...

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The amount of usable water has always been of great interest in the world.　1　springs and streams sometimes means control,particularly in the 　2　areas like the control is possible even without possession of large areas of 　3　 the early days of the American West,gun fights were not 　4　for the water resources(资源) laws had to be 　5　to protect the water rights of the 　6　and the use of the water resources accordingly.

7　is known to us all,there is not 　8　water in all places for everyone to use as much as he ding on the 　9　of water that will be used in any particular period 　10　careful planning,so that people can manage and use water more 　11　ers have to change their use of or demand for water 　12　the water supply forecast(预报).

The 　13　water supply forecast is based more on the water from the 　14　than from the rest is 　15　in the ways to increase rainfall by man-made methods,and to get water from the winter snow on mountain 　16　 special equipment,some scientists are studying the ways in which the mountain snow can be 　17　,and with the help of a repeater station,they send the 　18　data(数据) to the base operator at the base station can get the data at any time by 　19　a the near future,the forecast and use of water 　20　probably depend on the advance knowledge of snow on mountains,not of water underground.

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