Heat treatment is the operation of heating and cooling a metal in its solid state to change its physical properties.
热处理是将金属在固态加热和冷却以改变其物理性能的操作。
The ideal cycle heat efficiency used nowadays is affected by the relative internal efficiency so it can't reflect the operation economic state of thermal system of steam turbine.
目前采用的汽轮机理想循环热效率受到相对内效率影响而不能准确反映汽轮机热力系统运行经济状态。
Contains a system of equations that describes the steady-state operation of a heat exchanger network.
包含描述一个换热器网络的稳态操作的方程序系统。
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