标准金
- n.proof gold
- 网络standard gold
标准金标准金
standard gold
冶金专业英语词汇(S) ... standard electrode 标准电极 standard gold 标准金 standard sample 标准试样 ...
proof gold
GOLD-英汉词典-英中字典-速译通... ... printed circuit gold plating {n.}印制电路镀金 proof gold {n.}标准金 prove gold 验金 ...