过去22年来，247名复旦大学研究生志愿到宁夏西海固地区支教。
247 graduate students of Fudan University have volunteered to teach the children in Xihaigu region of Ningxia for the past 22 years.
介绍了甘肃省东部及其相邻的西海固地区1984～1996年间6口深井的水位观测结果及其调和分析结果。
The observational Results of well water level in eastern Gansu province and its Adjacent zone during 1984~1996 are recommended, and the harmonic analysis results of 6 well level are given.
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