However, the silver paper is mainly produced by handcraft in China, which pollutes the environments and damages human health, so the status needs to be urgently improved.

然而，目前我国锡箔的生产方式主要为手工敲制，既污染环境又危害群众的生命健康，亟待改善。

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A shiny silver ball reflects the light in a different way than a sheet of paper does. M3G models these material characteristics with the following attributes.

一个闪闪发光的银色球反射光线的方式与一张纸显然不同。

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Early on, Adam Smith recommended the “substitution of paper in the room of gold and silver money”.

在早期亚当斯密推荐使用这种“纸质的货币代替金银货币”。

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This left even less gold and silver to exchange for the huge amounts of paper money the banks had issued.

VOA: special.2009.01.01

The Treasury Department would buy the silver with new paper money that could be exchanged for silver or gold.

VOA: special.2010.06.17

Everyone wanted gold. They took their paper money and their silver to the government and exchanged them for gold.

VOA: special.2010.06.17

Hence, it was cheaper to get silver by using the paper money to buy it on the market than by converting the paper money into silver at the fictional legal price.

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Coinage fluctuated between all gold (less frequently) or all silver (more frequently) or all paper or all Spanish for the dollar.

FORBES: 2012: Good Money And Jobs vs. Easy Money And Stagnation

Now with gold over valued, silver coins disappeared from circulation and gold coins (and paper money) dominated the currency.

FORBES: 2012: Good Money And Jobs vs. Easy Money And Stagnation