Dutch metal

dutch-metal的词性：
n.（名词）

1. An alloy of 80 percent copper and 20 percent zinc used to make low-priced jewelery and in thin sheets as an inexpensive imitation of gold leaf.
荷兰合金：一种含80%铜和20%锌的合金，用来制造廉价珠宝。做成薄片可作为金叶的低价模仿品