流通制度的英文：
circulation system

circulation是什么意思：
n. 血液循环；流通，传播；发行量

Have you been circulated with details of the conference?
你收到会议详情的通知了吗？

circulate counterfeit coins
使伪造的钱币流通

This magazine has a large circulation.
这本杂志发行量很大。

The circulation of gossip is abhorrent.
传播流言蜚语是可恶的。

The air was circulated mechanically.
空气循环是靠机械驱动的。

system是什么意思：
n. 体系，系统；设备；制度；方法；身体；次序

Is the system unstable?
是系统不稳定吗？

It was not a perfect system.
它不是一个完美的系统。

This is a sexpartite system.
这是一个由六部分组成的系统。

Anatomically, the nervous system is divided into the central nervous system and the peripheral nervous system.
解剖学上把神经组织分为中枢神经系统和周围神经系统。

disaccord between the economic system and political system
经济体制与政治体系间的不协调