1·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。
—— 《柯林斯英汉双解大词典》
2·According to data reported so far, radioactive iodine is the main contaminant and concentrations in some food samples have been detected at levels above the Japanese regulatory limits.
根据迄今报告的数据，放射性碘是主要污染物，而且一些食物样本中检测到的放射性物质已经超过日本规定的水平。
3·Testing every milk tanker received at a processing plant is a somewhat more manageable number, approximately $21, 000, 000, but represents testing for just one contaminant.
检测每个在加工工厂接收的奶罐是一个有点比较易管理的数字，大概2千1百万美元，但仅仅只是一个污染物的表现检测。
4·As a new water treatment method, ultrasound technology is mainly based on high temperature pyrogenation and free radical oxidation contaminant during ultrasound process.
超声技术作为一种新型水处理方法，主要是利用超声过程中的高温热解和自由基氧化污染物。
5·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。