1.
The Use of CALINE4 Model to Simulate the Motor Mobile CO Diffuse Pollution of the Main Road in Xi'an City;
CALINE4模型在西安市主干道机动车CO污染扩散计算中的应用研究
2.
CO Pollution in Typical Roads of Beijing
北京市典型交通道路CO的污染现状
3.
Study on the Diffuse Characters of Plants for Vehicle Exhaust Pollutant CO;
汽车排放污染物CO植物阻散特征的研究
4.
CO is a dangerously poisonous gas that is emitted into the air in relatively large quantities by the automobile engine.
一氧化碳（CO）是一种由汽车发动机以相对大的量排放到空气中的危险污染气体。
5.
Studies on the Surface Interaction of Supported Metal Oxide Catalysts and Their Applications in the Abatement of Air Pollutant Molecules NO and CO
负载型催化剂的表面相互作用及其在大气分子污染物NO和CO消除中的应用基础研究
6.
antipollution vessel
反污染船污染清除船
7.
air pollution; airborne pollution; air pollution
空气污染(大气污染)
8.
soiled with dirt or soot.
被污垢或者煤烟污染。
9.
To spot, blemish, or pollute.
使有斑点、玷污或污染
10.
completely free from dirt or contamination.
完全没有污垢和污染物。
11.
clear from impurities, blemishes, pollution, etc..
去除杂质污渍污染等。
12.
or contamination with industrial or farm waste.
或工农业污水造成污染。
13.
discharge prediction of industrial pollution sources
工业污染源排污预测
14.
not spreading pollution or contamination; especially radioactive contamination.
不会散布污染或者污染物；特别是放射性污染物。
15.
soiled or likely to soil with dirt or grime.
被污染的或者像是被污垢或者污点所污染。
16.
Arctic Pollution Prevention Certificate
《极地防污染证书》
17.
1. Environmental Pollution Control
（一）环境污染防治
18.
free of weeds, contamination, pollution, etc
无杂草、 传染、 污染等.