All things being equal, on a 30-stage well, the tracers from each stage would represent between 3% and 4% of the total concentration of tracer material sent downhole.
在所有条件相同的条件下，一口压裂30段的井中每个层段的示踪剂量占所有被注入井下示踪剂总量的3%到4%。
New tracer ammonium molybdate was used and samples with high or low concentration of molybdenum were analyzed by means of colorimetry and polarography.
采用新示踪剂钼酸铵，并对高、低不同浓度的钼样品进行比色法和示波极谱法分析。
In the unstable flow the radial distribution of tracer gas concentration is asymmetry.
在不稳定的流动状态下，气体的径向浓度分布曲线两边出现不对称。
A tracer monitoring for the landfill gas concentration variation on the condition of leachate recycling as compared with that of the un-recycling in semi-aerobic landfill.
对准好氧填埋结构渗滤液回流情况下填埋气产气过程做了跟踪监测。定期测定填埋气中的组分浓度变化，结合填埋场渗滤液水质变化进行分析。
The small average relative error of tracer concentration in the different range of researched gas flow capacity shows a better quenching effect of the new quench mixer.
在所研究的气体流量范围内，示踪剂浓度的平均相对偏差均较小，说明新型急冷混合器具有较好的混合效果。
Calculates the natural ventilation rate by the tracer gas decay method. Explores the definition of the indoor criterion of carbon monoxide concentration and the carbon monoxide emission from cars.
利用示踪气体法计算了地下停车库的自然通风量，并讨论了地下汽车库内一氧化碳允许浓度和小汽车一氧化碳排放量的确定。
The small average relative error of tracer concentration in the different range of researched gas flow capacity shows a better quenching effect of the new quench …
在所研究的气体流量范围内，示踪剂浓度的平均相对偏差均较小，说明新型急冷混合器具有较好的混合效果。
For improving the air quality, the concepts of age of air are introduced and the solutions of age of air and ventilation efficiency are obtained by using tracer gas concentration of…
为了提高客舱内空气品质，引入了空气龄的概念并给出了由客舱内典型点的示踪气体的浓度求空气龄及通风效率的方法。
For improving the air quality, the concepts of age of air are introduced and the solutions of age of air and ventilation efficiency are obtained by using tracer gas concentration of…
为了提高客舱内空气品质，引入了空气龄的概念并给出了由客舱内典型点的示踪气体的浓度求空气龄及通风效率的方法。
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