net transport

Especially, while exchanging between bedload and bed material, the net transport of bed load towards waters was considered.

主要在床沙与推移质交换的同时，考虑了床沙与推移质向悬移质的净交换。

It is clear that there will be not net transport of dye even though vigorous transport of fluid and mixing are occurring.

很明显，这时就不存在净染色的传递，尽管水体本身仍然存在着传递和掺混现象。