通过分析试验数据，找到电积液的密度与锌离子浓度、硫酸浓度以及温度之间的变化规律，并且建立了相应的经验关系式。
From the experimental data, the empirical formula deduced correlating zinc concentration, sulfuric acid concentration and temperature to the density of the zinc sulfate electrolyte.
采用控制环境生长室研究了2个密度水平下CO2浓度升高对红桦幼苗干物质分配与营养的影响，并分析了红桦干物质分配与养分浓度的关系。
The effects of elevated CO2 concentration on dry matter allocation and nutrient contents of red birch seedlings were studied under two planting densities in controlled environment Chambers.
论述了通过双法兰差压变送器测定聚丙烯浆液密度，从而求出聚合反应釜中浆液浓度的方法，并进一步讨论了浆液浓度与平均停留时间、料位和聚合量等工艺参数之间的关系。
A method for calculating the slurry concentration inside the reactor was developed in this paper through determining the slurry density of polypropylene with double - flange pressure transmitter.
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