WY 1 in stake Cascade Impacted was used to measure the particle size classification of dusts and the fractional collecting efficiencies of dust collectors.
采用WY1型冲击式尘粒分级仪测量各尘源排放粉尘的粉尘粒径分级组成和除尘器的粒径分级除尘效率。
In this paper, it is pointed out that the effects of entrainment on coarse particle size are not neglected through analysis of data of classification tests.
本文通过对分级试验数据的分析，指出混杂作用对粗粒级的影响是不可忽略的。
Three soil characteristics are selected as family classification criteria. They are particle-size class, soil mineralogical type and soil temperature regime.
反映土壤理化性质并影响土壤利用管理的颗粒大小级别、矿物学类型和土壤温度级别是理想的土族分类标准；
The effect of the technical parameters on the particle size of the superfine zinc powder from the air-classification is investigated.
研究超细锌粉气流分级技术工艺条件对产品粒度的影响因素。
The particle-size classification of moving dune and semi-fixed dune was better, which showed a strong positive bias and a sharp peak.
移动沙丘和半固定沙丘分选较好，表现出极强的正偏和较尖的峰值；
The particle-size classification of moving dune and semi-fixed dune was better, which showed a strong positive bias and a sharp peak.
移动沙丘和半固定沙丘分选较好，表现出极强的正偏和较尖的峰值；
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