货币制度的英文：
coinage

Monetary system
货币制度

The monetary system of some countries used to be based on gold.
过去有些国家的货币制度是金本位制的。

The monetary system of certain countries used to Be Based on gold.
某些国家的货币制度过去一直是金本位的。

A great profit accrues to the Government from the coinage of copper
政府因铸造铜币而获大利。

The silver coinage was repeatedly debased with copper vellon
银币一再用铜币维隆来替代，实行贬值。

These characteristics led to their being used for jewellery and eventually coinage
这些特性使得它们能成为珍宝，最后用来作货币。

I haven't heard that expression before is it a recent coinage?
我以前从未听到过这个词语--是最近新造的吗

In almost all countries with established political orders coinage has been reserved to the state
几乎所有已建立政治秩序的国家都把铸币权保留在国家手中。