由于邮件中心(收发室)的员工可以看到每一封邮件和其他重要的信息，他们通常比其他人更了解行情。

Because mailroom staff saw every piece of mail and other important information they often knew what was happening better than anyone else.

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审计监察室指导帐簿的内部审计和核查内部控制系统以及其执行情况。

Audit and SupervisoryOffice conducts internal audit of the accounting books and review the internal control system and its implementation.

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实验室测试结果和实际运行情况充分证实了系统的高性能、稳定性与可靠性。

Its high performance, stability and reliability are proved both in lab testing and in practical operation.

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