grain-size characteristics

基本解释

The grain-size characteristics reflect the sedimentary environment.
沉積物的粒度特征反映了沉積環境。
Based on the data from Datong gauging station of Yangtze River, the grain-size characteristics of suspended sediment has been studied by using regression analysis.
以大通站爲例，用廻歸分析的方法研究了長江入海懸移質泥沙的粒度特征。
Detailed analyses of the grain size distribution characteristics and the grain profile wavelength of fine diamond grinding wheel used for ultra-precision grinding are presented.
對超精密磨削所用細粒度金剛石砂輪磨粒粒逕的分佈特點和砂輪表麪上磨粒的輪廓波長進行了分析。