valve sizing
... valve shaft,阀轴 valve sizing,阀尺寸计算；阀口径计算 valve stem,阀杆 ...
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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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