The Circulation of Silver Coins from East India Company in Zhoushan;
东印度公司银币在舟山的流通
Tarnishing Mechanism and Anti-tarnishing Techniques of Gold and Silver Coins;
金银币变色机理和抗变色工艺研究
The surface defects of silver coins were analyzed to find out the reason and put forward protective method as coatings.
分析了我厂银币表面缺陷形成的原因 ,并提出了在银币表面施加保护膜的设想 ,通过各种防变色工艺实验 ,提出了采用电解保护和浸渍抗变色剂的多层组合防护膜保护工艺方案。
Technical specification in cyanide silver plating;
氰化镀银工艺中的几个技术问题
Acoording to the surface appearance and the microhardness of coating,the parameters of silver plating with pulse current are optimized by the rthorhombic experiment.
以镀层表面形貌和显微硬度为考核指标,采用正交试验法优选了脉冲镀银参数,采用优选的脉冲参数电镀与直流电镀的银镀层作了比较。
The working principle and main functions of a silver electroplating line is briefly introduced.
简要介绍镀银生产线的工作原理及主要功能。
In order to improve its conductivity, silver electroplating was applied.
详细介绍了在铍青铜上电镀银的工艺过程，并提出了几种对所得银镀层进行防变色处理的方法。
20 in notes and 5 in silver
20镑纸币和5 镑银币
British coinage of silver or gold, having as a standard of fineness0.500for silver and0.91666for gold.
标准纯银币或银币的英国货币制度，标准纯度为银币0。500，金币0。
British coinage of silver or gold, having as a standard of fineness0.500 for silver and0.91666 for gold.
标准纯银币或银币的英国货币制度，标准纯度为银币0。500，金币0。91666
antique furniture, silver, etc
古董家具、 银币等.
Pennies, nickles, dimes and quarters are United States coins.
1分铜币、5分镍币、1角银币和2角5分银币是美国硬币。
An ancient Greek silver coin.
德拉克马古希腊银币
an old small silver Spanish coin.
旧时西班牙通用的银币。
The new silver coins have been put into circulation.
新银币已经开始流通了。
It was full of silver coins.
箱子里装满了银币。
A chest in a mint in which specimen coins are placed to await assay.
硬币样品盒造币厂存放待检金银币样品的盒子
A U.S. silver coin worth50 cents.
五角硬币一种美国银币，值五十美分
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。
a silver of the degree of purity established for making legal silver coins.
纯度确定的用于铸造合法银币的银。
bank note lawfully issued
合法发行的银行纸币
Checking account(or bank money)
支票帐户（或银行货币）
wildcat currency.
不可靠银行发行的货币
Some coins are made of silver.
有些硬币是用银做的。
The money market is very stringent.
货币市场上银根奇紧。