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Methods Data from injury accident registration of Changsha railway general company (1994-1999) was analyzed.
方法采用长沙铁路总公司1994 ~ 1999年伤亡事故登记资料进行统计分析。
youdao
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Methods Data from injury accident registration of Changsha railway general company (1994-1999) was analyzed.
方法采用长沙铁路总公司1994 ~ 1999年伤亡事故登记资料进行统计分析。
youdao