短語詞組短語quenching in oil 油淬quenching g oil 淬火油quenching press oil temperature control 淬火壓床油溫控制vacuum quenching oil [機]真空淬火油synthetic quenching oil 合成淬火油ordinary quenching oil 普通淬火油fast quenching oil [機]快速淬火油;快速淬火油quenching oil column 急冷油塔whale quenching oil 淬火鯨油 返回 quenching oil