求翻译：政府部门或上级部门负责调查的安全事故，以政府部门或上级部门下发的批复为依据，各单位结案归档。是什么意思？

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Government departments or superior department is responsible for investigating security incidents, to government departments or superior department issued based on the submitter archiving, the units were closed.

The government department or the higher authority department is responsible for the security accident which investigates, after-crops giving a written reply to a subordinate take the government department or the higher authority department as the basis, various units settle a lawsuit the filing-up.

Government Department or superior departments responsible for the investigation of accidents, is based on the departments issued a reply of the Government Department or superior, all units closed archives.

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