contaminant

• Contaminants of chemical origin
  化学性污染物
• Use a vacuum cleaner to remove dust , sand residue , and other contaminants
  用真空清洁器除去粉尘、残砂和其他污染物。
• Determination of solid particulate contaminant in fluids by the gravimetric method
  油液中固体颗粒污染物的重量分析法
• Fluid contamination - determination of contaminants by the gravimetric methods
  液体污染物.用重量分析法测定液体污染物
• The application of macroreticular resins to concentrate organic contaminants in water
  大孔树脂富集水中有机物的技术环节
• ( 4 ) cfd simulations of contaminant distribution in displacement ventilation
  ( 4 )置换通风下污染物浓度分布的模拟研究。
• Compressed air for general use - test methods for gaseous contaminant content
  一般用途压缩空气.气体污染物含量的试验方法
• The effect of contaminants and falling cuttings is to be eliminated in description
  岩屑描述时，必须避免掉块和污染物的影响。
• A likely contaminant is oxygen , since the glass tube consists mainly of sio2
  有可能的杂质是氧，因为玻璃试管主要包括二氧化硅。