名詞 constantan:

1. an alloy of copper and nickel with high electrical resistance and a low temperature coefficient; used as resistance wire
   同義詞：Eureka

con.stan.tan

n.（名詞）
An alloy of 45 percent nickel and 55 percent copper, used chiefly in electrical instruments because of its constant resistance.
康銅：一種用45％的鎳和55％的銅組成的合金，因其具有恒值電阻而主要被用于電表儀器中

來源：
From constant
源自 constant