The key to calculate the temperature drop induced by adiabatic throttle of compressed natural gas is to find the solution of the Joule-Thomson coefficient.

计算压缩天然气绝热节流的温度降的关键是求解焦耳-汤姆逊系数。

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And so they defined them, p after many experiments, the limit of this 0 delta T delta p and the limit of delta p goes to zero as the Joule-Thomson coefficient.

他们定义了这些量，以及它们的范围，ΔT比Δ,Δp的极限趋近于,叫做焦耳-汤姆逊系数。

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