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Picked after a rigorous selection,  the data were transformed into an Excel-format database. Adopting comparative analysis as the key method, we have used statistical figures to show the features of dangerous chemical accident-related data as time passed by or as result of regional differences or enterprise scale, or environment pollution accidents resulted from hazardous chemical and discussed the causes of these characteristics.¡±
Éó¸åÈ˵ÄÎÊÌâ¡°Description of statistical analysis used is not clear. Which kind of rigorous selection of data was done? Which method was used for comparative analysis? The results only show summary data.¡±
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duan2008(½ð±Ò+10): 2010-10-25 20:51:20
duan2008(½ð±Ò+10): 2011-01-12 18:26:08
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