油藏物理学一老石粒度组成与比面 1.Definition size distribution----The size distribution may be represented as the cumulative curve of grains that are retained on a given sieve size“percent larger,”or the grains that pass through a given sieve,"percent finer."size distribution ---- The size distribution may be represented as the cumulative curve of grains that are retained on a given sieve size “percent larger,” or the grains that pass through a given sieve, “percent finer.” １． Definition ： 油藏物理学——岩石粒度组成与比面