active mediated transport的用法和样例：
- It suggests that NO acts as aphysiological messerger in circulation, newotransmission and immune defense ,or a active mediator in some pathophysiological state.
- The Chinese side has always been actively mediating on the DPRK nuclear issue.
- Here we report that two different types of transporters mediate transport of arsenite, the predominant form of arsenic in paddy soil, from the external medium to the xylem.
- The orient has been playing an active role in the world economy.
- He is an active member of the school's stamp club.