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四、研究成果 (一)数据处理 本报告在进一步数据处理上,遵循以下3原则: 1.人均生活用水定额≤40L/d,删去; 2.报表上缺居民生活用水总量或公共用水总量,删去; 3.日变化系数K_d>2.0、K_d<1.0,删去。 经过认真而又细致分析,将88城市用水量资料删掉33家,利用55城市售水量统计报表约6万个数据和补充的“城市建设统计年报”中33城市用水资料约4万个数据,共计10万个数据,采用数据整理分别计算出1990～1993年5张分析成果汇总表。这些表反映了各城市的人均用水定额现实状况(见表1～5)。
IV. Research Achievements (1) Data Processing In the further data processing of this report, the following three principles are followed: 1. The per capita domestic water consumption quota is ≤ 40 L/d, and it is deleted; 2. The total household water consumption or total public water use is missing from the report. Volume, delete; 3. Day change coefficient K_d> 2.0, K_d <1.0, delete. After careful and meticulous analysis, 33 city water consumption data have been removed, 33, and about 60,000 data from the 55 urban sales statistics report and 33 urban water supply data from the supplemented “Urban Construction Statistics Annual Report” have been used. A total of 100,000 data were used to calculate five summary tables of analysis results from 1990 to 1993. These tables reflect the actual status of per capita water usage in each city (see Tables 1–5).