After sedimentation and compaction, the coefficient of compaction is fixed, and the mineral grain's framework is keep constant, then the stratum cubage keeps constantly. 经过沉积、压实作用以后,岩层压实率趋近最终压实率,岩石中矿物颗粒骨架基本上保持不变,则岩层体积保持不变。
The specific rotation, intrinsic viscosity, sedimentation constant and molecular weight of these two polysaccharide were all presented. 本文报告了两种多糖的比旋度、特性粘度、沉降系数及分子量。