污染物

• We will not consider radioactive pollutants because of their special nature .
  我们不研究放射性污染物，原因是它们的性质特殊。
• Even slight contamination could affect film thickness to a considerable degree .
  即使存在一点污染物就会对液膜厚度产生一定程度的影响。
• On the plus side, wind dilutes and scatters air pollutants, and carries pollen .
  从好处来说，风能稀释和驱散空气中的污染物质，传播花粉。
• As a result, particulate emissions from automotive diesel engine may be controlled also .
  结果对汽车柴油发动机排放的微粒污染物也要进行控制。
• The spilled liquid gasoline quickly evaporates, adding more hc pollution to the air .
  溅落的液态汽油迅速地蒸发，给空气增添了更多的HC污染物。
• Also, it helps to prevent dust and other airborne contaminants from flowing into the room .
  它还有助于阻止尘埃和空气所带的其它污染物进入室内。
• Ventilation is concerned with the supply of fresh air, the removal of contaminants and heat .
  通风涉及的是新鲜空气的供应，污染物和热量的排除。
• Once pollutants become airborne they are subject to the dispersing action of the atmosphere .
  一旦污染物被空气携带，它们就受到大气层的散布作用。
• Each of the preceding classifications of polluted air masses involves primarily particulate pollutants .
  上述每类被污染空气基本都含有粒状污染物。
• At any time the macrophage system might be injured by viral infection or air pollutant exposure .
  巨噬细胞随时都可能受病毒感染或空气污染物所损伤。