The way one does it is for BWRs they use two things.

一种方法用在沸水式反应堆，要用2个东西。

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By using BWRS state equations, the outlet parameters of gas wave refrigerator under varied working conditions were calculated.

利用BWRS状态方程对气波制冷机变工况时出口参数进行了计算求解。

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Based on the BWRS state equation, the complete formula for calculation Joule-Thomson coefficient is derived, and the detail calculation procedure is given.

使用BWRS状态方程，推导出了计算焦耳-汤姆逊系数的完整公式，给出了详细的计算步骤。

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The reactors at Fukushima-Daiichi are called boiling-water reactors (BWRs) and were manufactured by General Electric.

FORBES: Explainer: What Caused The Incident At Fukushima-Daiichi