以国际标准为基础与国内传统计算方法相比较，探析调节阀口径的计算方法。
Based on the international standard and compared with the domestic traditional method, this article discusses the measurement method of the regulating valve caliber.
以国际标准为基础与国内传统计算方法相比较，探析调节阀口径的计算方法。
Based on the international standard and compared with the domestic traditional method, this article discusses the measurement method of the regulating valve caliber.
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