It's become a routine safety procedure ever since the 2003 Columbia accident.

自2003年“哥伦比亚”号事故以来，这成了一种日常安全程序。

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To manipulate machines according to safety procedure of company. Perform daily maintenance check-list according to maintenance procedure.

根据公司的安全程序正确的操作机床。并根据维修程序对机床进行日常维护点检。

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Set up safety operation guideline for sterilization. Responsible for the safety procedures are strictly followed. Periodically review safety procedure to improve safety;

建立灭菌安全操作纲领，负责安全操作程序被严格执行，阶段性回顾安全程序以提高灭菌工作的安全性。

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Journalists have repeatedly queried the safety of the procedure.

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In these cases, police spokespersons defend the actions of the officers by explaining that in these no-knock raids, securing the premises and eliminating immediate threats to officer safety is standard operating procedure.

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It warned of a shortage of evidence about the safety and effectiveness of the procedure.

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