常見例句雙語例句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(qiáng)化的趨勢(shì)迅速冷卻，有必要制定預(yù)熱來消除冷金屬淬火效果，并減少冷卻速率。 返回 harden quench