资讯

Suspension - small ... suspended in the flow of the water. Saltation – where small pieces of shingle or large sand grains are bounced along the sea bed. Traction – where pebbles and larger ...
Suspension - small particles such as silts and clays are suspended in the flow of the water. Saltation - where small pieces of shingle or large sand grains are bounced along the sea bed. Traction ...