The cells were tested for karyotype, sterility, contamination with exogenous agents and cross contamination, and analyzed for genetic stability by isoenzyme map.

进行无菌检查、细胞核型和同工酶谱分析，了解细胞遗传稳定性、外源因子污染和细胞间交叉污染情况。

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Stay extra safe: If the burger's not hot enough and you have to cook it longer, be sure to wash the thermometer before you test the meat again to avoid cross contamination.

更安全的做法：如果肉类还不够热，你应该再煮一段时间。记得在重新测量之前把温度计清洗干净，避免交叉感染。

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When toothbrushes are stored in close together and touching in a tooth mug, the germs can pass from one to another, leading to the risk of cross contamination.

如果大家的牙刷都放到一个漱口杯里并且有所接触的话，细菌就会在牙刷之间相互传播，导致交叉感染。

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Investigators raised a number of sterilization and "cross-contamination" alarms -- such as "unauthorized, unlicensed" employees using IVs to sedate patients and improper handling of needles.

CNN: Dozens of Okla. dentist's patients positive for hepatitis

Investigators raised a number of sterilization and "cross-contamination" alarms -- such as "unauthorized, unlicensed" employees using IVs to sedate patients and that needles weren't handled properly.

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The design of the tools reduces the number of parts to be sterilized, reducing risk of cross-contamination and cost.

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