male thread throttle valve的意思|示意

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外螺纹节流阀

male thread throttle valve的网络常见释义

外螺纹节流阀 ...外螺纹接头 joint with male thread 外螺纹节流阀 male thread throttle valve 外螺纹危险断面抗弯截面模数 bending-resistant section modulus of danger section of external thread ..