初濃度initial concentration 時間tの濃度concentration at time t 時間time
等速で沈降Settling at constant velocity
t1の間にH以上沈む粒子の割合Percentage of particles that sink more than H during t1
t1-t2の間にH沈む粒子の割合Percentage of particles that sink H[m] between t1 and t2
粒子直径particle diameter 残留率Residual rate
頻度frequency