A sampling method of passive diffusion tube for collecting formaldehyde in indoor air was established.
本文建立了被动式扩散管采集室内空气中甲醛的方法。
In survey of this phenomenon, using spot date, physical and mathematics stimulant method, flowage and diffusion are studied and wellbore flow and air diffusion model of CO are established.
针对这一现象，运用现场数据以及物理模拟和数学模拟方法首次通过对CO气体流动、扩散等的综合研究，建立了CO井筒流动及大气扩散模型。
The adsorption and diffusion of oxygen and nitrogen in two samples of carbon molecular sieve used for air separation have been studied by gravimetric method.
用重量法研究了氧、氮在两种空分用炭分子筛上的吸附与扩散。
Based on the moving puff integration model, TSP atmospheric diffusion model in conditions of light air and calm has been derived theoretically by a method of mathematical model analysis.
以移动烟团积分模式为基础，采用数学模型分析法，从理论上导出了小风和静风状态下的TSP大气扩散模式。
Based on the moving puff integration model, TSP atmospheric diffusion model in conditions of light air and calm has been derived theoretically by a method of mathematical model analysis.
以移动烟团积分模式为基础，采用数学模型分析法，从理论上导出了小风和静风状态下的TSP大气扩散模式。
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