求翻译：事故调查和处理是什么意思？

Accident investigation and treatment

accident investigation and processing

Because every violates regulations the work, the misoperation, the analysis mistake, the vessel pipeline unclean, the product mixes the string, raw material unqualified and the management bad and so on the reasons, creates the half-finished product (between product), the end product does not conform

Accident investigation and treatment

Accident investigation and treatment