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On the basis of coordinate copying down automatic rain recrder data,many times a year sampling,index frequency distribution curve and computer searching b optimum value the new formula of storm rainfau intensity in Xi an city have been established by means of computerized systemotical statistical analysis.

采用座标抄录自记雨量资料，１ａ多次法选样，以指数型频率分布配合，经编制程序上机寻优确定ｂ值等计算，推导出西安市新编制的暴雨强度公式ｉ＝。

Treatment of Symptomic Myohysteroma by Ultraselective Arterial Thrombosis;

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Although both of them are used to drain stormwater out of city,they have different design standards,storm sampling methods,frequency distribution,and calculation methods of runoff.

2种排水系统遵循不同行业规范,采用的暴雨选样方法、设计标准、频率分布模型、设计流量计算方法等各不相同。

The author introduced the choice of rainfall observation station, the gain of basic information, rainstorm sampling method and data analysis.

在对上海市短历时暴雨强度公式研究中,介绍了降雨观测站点的选择、基础资料的获取、暴雨选样方法与数据统计。