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２．３￣（１３１）Ｂａ示踪测井微球粒度测定齐秀珍对于￣（１３１）Ｂａ放射性示踪测井微球，须测定粒径及其各粒径范围的百分比。为保证微球粒度，通常采用筛分法，把粒径分成０．１０－０．３０、０．４０－０．７０和０．７０－０．９０ｍｍ等几个范围。测定方法如下...
2.3 ~ (131) Ba tracer logging microsphere size determination Qi Xiuzhen ~ ~ (131) Ba radioactive tracer logging microspheres, the particle size to be measured and the percentage of each particle size range. In order to ensure the particle size of microspheres, sieving method is usually adopted to divide the particle size into several ranges of 0.10-0.30, 0.40-0.70 and 0.70-0.90 mm. The determination method is as follows ...