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在劳动保护科学领域中，有许多迫切需要解决的理论问题。一些热心于理论研究的同志，发表过一定数量的见解，这是可喜的。但是，各种不同见解很少交流，以致有些理论至今并没有取得比较一致的认识。为了活跃和深入这方面理论研究，推动工作的发展，本刊开辟了学术争鸣专栏，以认真贯彻双百方针。欢迎广大理论研究者和读者关心这个专栏，投身这个专栏。我们深信，真理是经得起争辩的，因为真理终将愈辩愈明。
In the field of labor protection science, there are many theoretical issues that urgently need to be solved. It is encouraging that some comrades who are enthusiastic about theoretical studies have published a certain amount of views. However, the opinions exchanged are seldom exchanged so that some theories have so far failed to achieve a more unified understanding. In order to actively and in-depth theoretical research in this area, and promote the development of the work, this issue has opened up a column of academic contention to conscientiously implement the “two hundred principles.” Welcome the majority of theoretical researchers and readers concerned about this column, join this column. We are convinced that the truth can stand the argument, because the truth will eventually be more obvious.