Causes of fire during the manual clean-out operation of oil tanks are analyzed, and corresponding preventive measures are put forward.

分析了油罐人工清洗作业过程时容易引发火灾的原因，并提出相应的预防火灾措施。

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The report comes only days after Saudi Arabia's Aramco revealed it had completed a clean-up operation after a virus knocked out 30, 000 of its computers.

BBC: Computer virus hits second energy firm