Safe harbor levels 安全暴露值
safe operation levels 安全运行水平
Safe' lead levels harm children 现行铅含量标准对儿童不“安
Maintaining safe speeds and being electric, self-driving cars would drastically reduce pollution levels and dependency on non-renewable fuels.
保持安全速度和电力驱动的自动驾驶汽车将大幅降低污染水平，减轻对不可再生燃料的依赖。
What investors once deemed safe levels of capital and liquidity they now consider dangerously thin.
那些投资者曾深信不疑的资本与流动性的安全水平，在今天人的眼中显得危险而薄弱。
Other bacteria including food poisoning bugs e.coli and staphylococcus aureus were found on the phones but at safe levels.
在手机上发现的细菌还包括可引起食物中毒的大肠杆菌和黄金葡萄球菌，不过这些细菌的量都在安全范围值以内。
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