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- The term photochemical oxidants refers to the secondary pollutants formed in photochemical smog. 光化学氧化剂这一词是指在光化学烟雾中生成的次生污染物。
- Control of the secondary pollution. 控制二次污染。
- Pollutants can be added to the air directly (primary pollutants), or they can be created in the air (secondary pollutants) under the influence of solar radiation. 污染物可直接进入大气（初级污染物），或在太阳辐射的影响下于大气中产生（次级污染物）。
- Physical absorption, without toxic and side effect or secondary pollution. 物理吸附,无任何毒副作用,无二次污染。
- Dynamically disinfects , no secondary pollution , no cautery to equipment. 动态消毒、无二次污染、不腐蚀设备。
- Results: the technique can treat with manifold pollutants and is widely applied with its merits of decomposing products sufficiently and bringing no secondary pollution. 结果:纳米二氧化钛光催化技术能处理多种污染物,使用范围广,具有降解产物彻底、不产生二次污染的特点。
- A study on the prediction of secondary pollutants' concentration in cities are carried out in this paper, based on a former version of the City Air Pollution Prediction System (CAPPS). 本文在CAPPS原有模式基础上研究了城市大气中臭氧等二次污染物的预报问题。
- Controlling environment pollution by biotechnology has the advantages of low cost and no secondary pollution. 应用生物技术治理环境污染,具有费用低、不产生二次污染的优点。
- At the same time avoid using plastic decking technology to secondary pollution, the use of more secure together. 同时采用免胶铺装技术，杜绝二次污染，所以使用起来更加安全可靠。
- Dispense with the battery system and improve MTBF and battery secondary pollution. 省掉蓄电池并可提高系统的平均无故障时间和蓄电池的二次污染。
- The Secondary Pollution Reason of Life Drinking Water Quaality of Highrise Residential Building and Its Prevention and Cure. 高层住宅楼生活用水的二次污染防治。
- They have been proven as high-absorption value and excellent air-purifying products without either energy-consumption or secondary pollution. 产品具有高吸附、无能耗、无二次污染的特点，是目前最优秀的空间环境净化治理产品。
- Without damage,dust and the secondary pollution,the use of abrasive fillers,can reduce costs,enhance profits improve apparent quality. 使用高、低猛合金丸，无破损、无灰尘、无二次污染，可见低成本，提高效益，提高产品的外观质量。
- Such pipelines spent some time off the water washed bullets, Yi feet, a yellow water and furring, causing water to the secondary pollution. 这种管道用了一段时间后经水冲刷镀层脱落，易锈蚀，形成黄水和水垢，造成自来水的二次污染。
- During the period of decomposing, they come into being “secondary polluter”, and the pollution was the worse in March. 在分解期，成为“二次污染源”，各指标均出现升高现象，并于次年3月达到最大值。
- The catalysis efficiency with power of organic matter of waste water degraded, and possess the nonpoisonous feature without secondary pollution. 特别对难以降解的废水有机物具有强大的催化功效,并且有无毒、无二次污染的特点;
- Coal exploitation leads to the Fe Mn accumulation in the sediments and seasonal secondary pollution in the waters in Lake Aha. 贵州阿哈湖汇水区煤炭资源的不合理开采导致铁、锰在沉积物中蓄积并产生湖水季节性二次污染。
- There exist many problems such as inefficient coagulant more expensive treatment the secondary pollution in treating drilling waste water. 钻井污水处理中存在着混凝剂效力不高，处理费用较高并易造成二次污染等问题。
- Comparing with traditional flocculant,the secondary pollution was not caused and the bioflocculant is safe or innocuity. 与传统的混凝剂相比,生物絮凝剂具有无二次污染、安全无害等优点。
- This paper briefs the issue of secondary pollution from municip al refus e incineration and focus on the prevention and control of heavy metal,HCI and or ganic chloride emission. 该文介绍了城市垃圾焚烧处理中的二次污染问题，着重分析了重金属、HCI及有机氯化物的二次污染的防治技术。
