Three-way or four-way round pipe welding is a common technique in practice.
将圆形管件焊接成三通、四通等是焊接行业经常遇到的工艺。
It introduces the change methods of typical round pipe changing into triangle and multi side pipe.
介绍了典型的圆管变三角形及多边形型材的变形方法。
Based on the law of energy conservation, the velocity expression of the abrasive flowing along the wall of the round pipe is derived.
根据能量守恒定律，推导出磨料在圆管边壁处的速度表达式。
According to double radius method and edge bend method, this paper introduces the design theory of roll pass with opposite direction bend in middle part for cold forming of round pipe.
本文在双半径法和边缘弯曲法的基础上，介绍了一种冷弯圆管的中部反向弯曲孔型设计理论。
In order to obtain the rheological and fluent parameter of filling techniques as designing basis, the filling paste round-pipe-test is a necessary work.
充填环管试验是采用充填工艺(干式充填除外)的矿山设计前进行的一项必要工作，旨在获得充填工艺流程的流体流变参数，作为设计的依据。
In order to obtain the rheological and fluent parameter of filling techniques as designing basis, the filling paste round-pipe-test is a necessary work.
充填环管试验是采用充填工艺(干式充填除外)的矿山设计前进行的一项必要工作，旨在获得充填工艺流程的流体流变参数，作为设计的依据。
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