常见例句雙語例句A tendency to harden by rapid cooling necessitates the use of preheat to remove the quench effect of cold metal , and to reduce the cooling rate.強化的趨勢迅速冷卻，有必要制定預熱來消除冷金屬淬火傚果，竝減少冷卻速率。 返回 harden quench