Your aseptic processing gowns were inadequate to prevent contamination of your sterile products with particles and microorganisms shed from employees' bodies.

你们的无菌操作衣不足以防止你们的无菌药品受到来自员工身体脱落的颗粒物和微生物的污染。

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In the cement pavement construction, application of plastic cover, to prevent contamination of the surface damage of cement slurry, the surface pattern and writing.

在水泥路面施工时，应用塑料膜将井盖盖好，以防止水泥浆沾染表面，损伤表面花纹、字迹。

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They emphasize the importance of having the right number of qualified staff, appropriate incentives to minimize turnover, and infection control measures to prevent contamination.

他们强调指出，具备适当数量的合格医护人员、制定旨在最大限度地减少人员流动的合理激励机制、出台感染控制措施具有重要意义。

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There is an effective way to prevent contamination of meat in our processing plants: irradiation.

FORBES: Fact and Comment

Work is now under way to ensure Scottish-based manufacturers of processed meat products have the right measures in place to prevent contamination.

BBC: Horsemeat contamination tests begin in Scotland

But he said the shortage of specialist officers would exacerbate the measures needed to maintain a cordon in an inner city area to prevent contamination being spread.

BBC: Warning over chemical attack 'cordon'