在操作员用户角色类别中，事件分析人员调查IT系统中发生的意外事件并管理服务端点。

In the operator user role category, the incident analyst investigates unexpected incidents when they occur in the IT system and manages service endpoints.

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我们正在调查意外事件的原因。

We are investigating the cause of the accident.

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根据该署的调查，对空气和水体造成污染的意外事件在2010年的上半年翻番，平均每月达10起左右。

The ministry said the number of accidents fouling the air and water doubled during the first half of 2010, with an average of 10 each month.

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