这些便士钱币是伦敦一家制币厂铸造的。
图1：凹版印刷的效果：真币(左)和复制币(右)。
Figure 1. Effect of intaglio printing: authentic banknote (left) and copied note (right).
自从1979年推出高纯度枫叶金币以来， 加拿大皇家制币厂已经售出20万盎司的金币。
Since 1979, the mint has pioneered high-purity Maple Leaf bullion coins, selling about 20 million ounces of them around the world.
本发明还公开了一种自助定制币制作硬件装置，可以控制压制模具压力，生产计数以及批量压制。
The invention also discloses a making hardware device of the self-help customizing currency, capable of controlling the pressure of pressing form, production count and batch pressing.
中国现代钱币网将是现代流通硬币（含精制币）收藏爱好者的网上家园，在这里可以相互交流和沟通，藏品可以相互展示，重在参与。
Modern China coins website will be the paradise of modern coin collectors. Here you can communicate each others, share or exchange your favorite coins.
中国现代钱币网将是现代流通硬币（含精制币）收藏爱好者的网上家园，在这里可以相互交流和沟通，藏品可以相互展示，重在参与。
Modern China coins website will be the paradise of modern coin collectors. Here you can communicate each others, share or exchange your favorite coins.
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