因为沉积作用是快速的, 分选作用和层理就得不到很好的发展.Because deposition is rapid, sorting and stratification are generally not well developed.轻的籽粒可以通过空气动力,即气流分选机清理出来.Light kernels may be removed by a pneumatic or air seperator.砂粒在波浪分选作用下从粉砂及粘土中...
a little fluffy kitten毛茸茸的小猫Cream the butter and icing sugar together until light and fluffy.把黃油和糖粉放在一起搅成轻软的糊状.The steamed bread is very fluffy.馒头很暄....