grey cast-iron的用法和樣例：
例句
- The paper introduces such a line to produce shell-moulds of small and medium-sized castings of grey iron for motors.
本文介紹了這樣一條用於生產汽車灰鑄鐵中小件的殼型鑄造生產線。 - Transformation characteristics of the dendritic austenite and eutectic austenitein commercial grey cast iron during continuous cooling have been investigated.
研究了工業灰鑄鐵中枝晶狀奧氏體和共晶奧氏體在連續冷卻過程中的分解特徵。
