In the gravity type oil water separating field, the shearing field mainly exists in all kinds of collison packing and flow boundary of vessel.
在重力式油水分离场中，剪切流场主要存在于各种聚结填料中和器壁的流动边界层内。
Gravel packing in horizontal holes is quite different from that in straight holes because of the direction of the gravel packing being vertical to the gravity direction.
在水平井中，由于砾石充填方向与重力方向相垂直，因而其充填规律与直井存在着根本的区别。
Suspension structure is adopted for the gravity-flowing packing machine with tri-flow control.
该包装机是具有三次流量控制的自流式包装机，采用吊挂式结构。
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