本刊今年第二期刊登《年千人负伤率如何计算》的答读者问以后,编辑部陆续收到几位读者来信,提出不同意见。考虑到这个问题在企业的安全部门具有一定的普遍性,故将三封读者来信全文发表,并特邀赵启明同志再次公开作答。如有异议,可进一步开展讨论。——编者 After the reader asked the second issue of this year about how to calculate the rate of wounded rate of thousands of people, the editorial department successively received letters from several readers and put forward different opinions. Taking into consideration that this issue has a certain degree of universality in the security department of an enterprise, it will publish the full text of the three letters from the readers and invite Comrade Zhao Qiming to publicly answer it again. Any objections can be further discussed. --editor