表面淬火 或渗碳法应用十分广泛.The case - hardening or carburizing process is in wide use.此种损失称为淬火, 呈两个方面.This loss, termed quenching , may arise in two ways.他们的工作就是使钢淬火.Their work is to harden steel....
He was in a state of tremulous excitement.他激动得直发抖。We waited in tremulous anticipation.我们怀着紧张的心情期待着.She fidgeted in her chair as she took a deep, tremulous breath.她在椅子上坐立不安，轻颤着深吸了一口气。...