砂粒粒度分布
sand-grain-size distribution
充填砾石与地层砂粒度中值比
median pack-to-formaton grainsize ratio
充填物与地层砂粒度中值比
pack-to-formation median grain size ratio
地层砂粒度中值
median formation sand grain size
formation median grain size
砾石-地层砂粒度比
gravel to sand size ratio
砂粒粒径
particle size
diameter of emery particle
砂轮砂粒粒径
grit diameter of grinding wheel
放射性气溶胶—浓度,粒度
particle size distribution
颗粒粒度表征
particle size measurement investigation
颗粒粒度测量
particle size measurement
particle sizing