一般加入少量的铱形成更硬、更强的合金，而又包括了铂的优点。

Small amounts of iridium are commonly added for a harder, stronger alloy that retains platinum's advantages.

youdao

一般加入少量的铱形成更硬、更强的合金，而又包括了铂的优点。

Small amounts of iridium are commonly added for a harder, stronger alloy that retains platinum's advantages.

youdao