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1 问题的提出人-机-环境各单元要素间是相互依赖、相互作用的,这种关系及作用结果会有规律地在运输生产过程的各环节中反映出来。当它们由于某要素发生异常或不和谐时可能发生某种事故。事故的发生表面上看似乎表现为偶然性和突发性,但发生事故有其必然性的一面,是有规律的,需要通过大量的事故原始资料去归纳、去总结。
1 The question put forward that the elements of human-machine-environment are interdependent and interacting with each other, and the relationship and the result of such interaction will be regularly reflected in all stages of the transportation and production process. An accident can occur when they become abnormal or discordant due to a certain factor. Occurrence of the accident appears to be accidental and sudden on the surface, but the accident has its inevitability side, there is a regular, need a large number of accidental sources to summarize, to sum up.