Silver dials are then rhodium or even fine silver to prevent tarnishing.
银色表盘铑甚至是精细的银，以防止变色。
A silver salt, especially silver nitrate, used to sensitize paper.
银盐，硝酸银：一种银酸盐，尤指硝酸银，用于使纸感光。
Waveguide products need to use much silver for silver plating.
波导类产品的电镀要消耗大量的银。
Waveguide products need to use much silver for silver plating.
波导类产品的电镀要消耗大量的银。
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