... precipitation hardening 析出硬化；淀积硬化 hardening temperature 硬化温度；淬火温度 quench hardening [冶金]淬火硬化 ...
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控制循环空气的相对湿度和空气的温度可防止表面硬化的出现。
It is prevented by controlling the relative humidity of the circulating air and the temperature of the air.
强制冷却：将高温钢材强制冷却到设计温度的工序，可防止钢材硬化过度，破裂或者内部损伤。
CONTROLLED COOLING: Process by which steel is cooled from an elevated temperature in a predetermined manner to avoid excessive hardening, cracking or internal damage.
在养护过程中，应控制混凝土在有利于硬化及强度增长的温度环境中。
In the conservation process, the control should be in favor of hardening concrete strength and growth temperature environments.
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