All contaminants in the water have been filtered out.

水中的所有污染物都过滤掉了。

The chemical contaminant must be handled immediately.

化学污染物必须马上处理。

The medical contaminants need to be treated centrally.

医疗污染物是需要集中处理的。

Make sure that all equipment is clean and free of contaminants.

要确保所有设备是干净且没有污染物的

Experts say testing needs to be done on each contaminant to determine the long-term effects on humans.

专家说需要对每种污染物进行测试，以查明对人类的长期影响。

The results show that man's movement affects air pressure, air velocity and contaminant distribution, while the impact on air temperature can be ignored.

结果表明，人体活动会对室内气流压力、速度及污染物分布产生一定程度的影响，对温度分布的影响可以忽略。

A contaminant, identified as oversulfated chondroitin sulfate, slipped through the usual testing and was recognized only after more sophisticated tests were used.

一种污染物，含过量硫酸盐的硫酸软骨素通过了常规的检验，仅在使用更加复杂的检验方法后才被发现。

High purity water systems are primarily composed of austenitic stainless steel (ss) materials due to their corrosion resistant and contaminant free properties.

考虑到铬镍不锈钢(SS)的抗腐蚀和防污染性，高纯水系统基本上都是由铬镍不锈钢材料构成。

Characters, shapes and stage concentration of the contaminant were defined; and two representative drain pipes in Harbin was been measured by field experiment.

对污杂物的性质、形状以及分级浓度进行了定义，并通过实验在典型时段对哈尔滨市两处具有代表性的污水干渠进行了现场测定。