Analyzed are principles of throttling expansion process and isentropy expansion process and derivation formula is adopted to identify the essential distinction of the both theoretically.

分析节流膨胀与等熵膨胀的原理，通过推导公式，从理论上找到二者的本质区别。

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Analyzed are principles of throttling expansion process and isentropy expansion process and derivation formula is adopted to identify the essential distinction of the both theoretically.

分析节流膨胀与等熵膨胀的原理，通过推导公式，从理论上找到二者的本质区别。

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