• The method and process of fabrication of tubesheet in double-tubesheet heal exchanger by using common sway arm driller were introduced in this article.

    介绍了一种使用普通摇臂钻床加工双板换热器管板方法操作过程

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  • It doesn't heal instantly, but will heal for about double what CoH does over its duration.

    虽然不是立刻治疗治疗总量是治疗之环的双倍。

    youdao

  • It doesn't heal instantly, but will heal for about double what CoH does over its duration.

    虽然不是立刻治疗治疗总量是治疗之环的双倍。

    youdao

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