冲积物花粉
Alluvial pollen
alluvial pollen assemblages
冲积物花粉与植被的关系
relationship between alluvial pollen and vegetatio
冲积物母质
alluvial deposit parent material
均匀冲积物
undifferentiated alluvium
沉积物物源
sedimentary source provenance
Sediment
(脉冲)积分微分方程
impulse integro-differential equation
Volterra型脉冲积分－微分方程
impulsive Volterra-type integro-differential equat