Factory has systems and procedures in place to control the risk of physical, chemical and biological contamination that may damage the product and personnel as well.

工厂有轨制和程序能控制物理、化学和生物污染风险，可能会损害产品和职员。

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Factory has systems and procedures in place to control the risk of physical, chemical, and biological contamination that may damage the product and personnel as well.

工厂是否有系统和程序去控制那些可能会影响产品或对人造成伤害的物理、化学和微生物污染风险。

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Objective To study the compartment environmental quality of ambulance against biological contamination for safe and comfortable transportation and treatment of patients.

目的：研究防生物污染伤病员急救车的车厢环境质量，实现安全、舒适运送、急救伤病员。

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John Sullivan of the Boston Water and Sewer Commission testified that since September 11 the nation's drinking water utilities have been on a heightened state of alert to protect against the potential disruption of water service and biological or chemical contamination of drinking water.

CNN: FBI: 'No specific, credible threats' to drinking water

Mr McCurdy said there was no micro-biological risk in horsemeat contamination if cooking and hygiene are correct.

BBC: Assembly told horsemeat fraud 'a real possibility'