第一类是显热，即在不发生相变的条件下改变流体温度所需要的能量。
The first is sensible heat, which is just the energy required to change the temperature of a fluid with no change in phase.
第一类是显热，即在不发生相变的条件下改变流体温度所需要的能量。
The first is sensible heat, which is just the energy required to change the temperature of a fluid with no change in phase.
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