chrome-nickel steel
英
美
- chrome n.铬；铬黄；谷歌浏览器vt.镀铬
- nickel n.镍；镍币；五分镍币vt.镀镍于
- steel n.钢铁；钢制品；钢铁般的性质vt.使坚强；使...硬如钢；使下定决心adj.钢的；坚强的
Noun:
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Elinvar is a trademark for a kind of steel used for watch springs because its elasticity is constant over a wide range of temperatures
