adj. nonpolluting
AO - 1抗氧剂具有良好的热老化性、热稳定性和光稳定性，是一种非污染的硫代双酚型高效主抗氧剂。
The AO-1 antioxidant, with good thermal ageing property, thermal stability, and light stability, is a thio-biphenyl type high-efficient major antioxidant without pollution.
在屠宰流水线作业中，清洁区与非清洁区物理隔开并分别配置人员，避免畜体和可食用副产品的相互污染。
In slaughter line operations, clean and unclean operations are physically separated and individually manned to avoid contamination of carcasses and edible by-products.
由于医疗器械通常用于免疫系统处于非最佳状态的人，所以它们受细菌污染的问题就显得尤为突出。
Bacterial contamination of medical devices is a particular problem, as those devices are then used on people whose immune systems may be in less than tip-top condition.
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