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- inhaled particle concentration 可吸入颗粒物
- Hence, the airspeed influences the indoor size-resolved particle concentration. 计算与实验的结果趋势非常一致。
- Experiments in pneumatic conveying show that there exists a maximum particle concentration. 气力输送实验表明，这里存着一个最大的颗粒浓度。
- The distribution of particle concentration in the cyclone tube was measured by isokinetic sampling method. 采用等动采样方法对旋风管内的颗粒浓度分布进行了系统测量。
- Loopy curved pipe was better than single curved pipe to profiles of particle concentration in phase separation. 多圈螺旋管能够达到比单圈螺旋管更好的有利于分离的颗粒相浓度分布。
- By using isokinetic sampling method, the particle concentration distribution in the novel cyclone tube is measured and analyzed. 采用等动采样方法,对新型旋风管内的颗粒浓度场进行了测试与分析。
- In the condition of low particle concentration, the desanding ratio increased with increasing average particle concentration. 在颗粒相浓度较低时，随着平均颗粒体积浓度的增加，除砂效率也增加。
- Particle concentration in the ambient air still keeps at relatively high level while the concentration of other pollutants has come close to or already met the national standards. 目前，北京市主要大气污染物中，颗粒物浓度一直居高不下，其它污染指标已接近或达到国家标准。
- The radial distribution function was introduced in order to take into account the effect of the uneven local particle concentration on the particle collision probability. 推导了高颗粒浓度气固两相流颗粒间碰撞概率的计算公式,引入径向分布函数来考虑局部颗粒浓度不均匀性对颗粒碰撞概率的影响。
- The particle concentration distribution in the cyclone tube, especially in the discharge cone and the dust hopper, is studied by isokinetic sampling method. 采用智能型五孔球探针测试技术及等动采样方法 ,对两种新型旋风管排尘结构内的流场及颗粒浓度场进行测量。
- This paper presents a new concept that particle concentration enrichment process through deceleration and diffusion process is the basis of fuel rich combustion technology. 提出了颗粒的滞止浓缩过程与弥散过程是浓缩煤粉燃烧技术的基础这一新概念,并分析了滞止浓缩过程与弥散过程的原理。
- Particle concentrations in the upper atmosphere drop regularly as the altitude rises. 在高层大气中粒子浓度随高度的增加而有规律地下降。
- Therefore, it is with great necessity to study flow field of human upper respiratory tract and deposition characteristic of inhalational particle. 因此,对人体上呼吸道内流场及可吸入颗粒物运动沉降规律的研究具有十分重要的意义。
- The results show that the inhalant particle in Harbin exists in irregular shapes,and most of them come from fugitive dust. 目前哈尔滨市各类湿地有65万公顷,松北新区有大面积的湿地,是哈尔滨未来的主要经济发展中心之一。
- A new method for measuring particle concentration distribution in swirling flow field using PIV technology is presented, which remedies the deficiencies of the old isokinetic sampling method. 初步形成了用PIV技术测定旋流场内颗粒相浓度的新方法 ,弥补了以往用等速抽气采样法测量的缺陷。
- In this study, the electrical capacitance tomography (ECT) technology is firstapplied for measurement of dilute particle concentration distribution in the CSB riserwith so large cross-section. 在以上优选的床结构和操作参数下,床内颗粒浓度和速度分布的均匀性,气固混合等状态最好,达到了流场优化的目的。 首次应用电容层析成像技术(ECT)开展了对床内低浓度、大尺寸气固两相流场进行的测量研究。
- Reduction of particle concentration may occur when a particle suspension entering a capillary, this is referred to as skimming effect.Increase of pressure gradient abates the skimming effect. 当颗粒悬浮液进入一毛细管，管内颗粒浓度有可能降低，这种现象称为撤流作用，增加压力梯度则可减少撤流作用。
- The air inhaled and exhaled in respiration. 呼吸的空气在呼吸中吸入和呼出的空气
- Airborne particle concentrations were highest in the fine particle size ranges in the areas affected by MWFs. 在有使用金属加工液之区域，较小粒径悬浮微粒的浓度较高。
- The experiments show that pouring has poor recovery rate of the real concentration.Shaking samples may result in partial mixing and uncertain particle concentration of the subsamples. 人工倾倒较难反应实际浓度，摇匀无法使颗粒分布均匀，导致次样品浓度不一。
