資料來源 : pyDict

埃勒因瓦恆彈性鎳鐵合金

資料來源 : WordNet®

Elinvar
     n : Elinvar is a trademark for a kind of nickel-chromium steel
         used for watch springs because its elasticity is constant
         over a wide range of temperatures [syn: {chrome-nickel
         steel}]