per unit area concentration

基本解释

It was found that the oxygen concentration on carbon black surface is proportional to the ozone supplied per unit area of carbon black surface.
研究表明，碳黑的表面含氧量与提供给单位碳黑表面的臭氧量成正比。
The analysis includes the concentration ratio at the base of a GCL, advective and diffusive mass flux, and total accumulated contaminant mass through the liner per unit area.
从衬垫底部浓度比、对流和扩散通量、污染物累积运移量等方面，对污染物在GCL中的运移进行了计算。
The culture model has salient features in high culture concentration, being conveniently controlled, high food conversion rate, high output per unit area, disease prevention and non - pollution.
新模式有集约化程度高，人工调控能力强，饵料转化率高，单位面积产量高，能有效预防虾病，对海洋环境可实现无污染零排放的高环保要求等特点。