iron alloys的用法和樣例：
例句
- Cast Alnico magnets, which are aluminum nickel-cobalt-iron alloys, are the most established and widely used permanent magnet materials.
鑄造鋁鎳鈷磁體，這是鋁鎳鈷鐵合金，是最建立和廣泛使用的永磁材料。 - Practical tests have been made in smelting alloy steel and alloy cast iron using this new additive instead of ferrotitanium and basic success has been obtanied.
使用該發熱鐵合金劑代替鈦鐵，在冶鍊合金鋼和合金鑄鐵中進行了應用試驗，基本取得了成功。
