The determination of reasonable pressure difference for horizontal well test is relevant to the reasonable productivity which is determined by the selection of nozzle.
水平井试井合理压差的确定实际上是与水平井合理产能相对应，而合理的产能是通过选择合理的油嘴来实现的。
Selective soldering can be done under an Angle (tilt) like in wave soldering or horizontal with different shape of nozzles and nozzle materials.
选择性焊接可以完成倾斜式波峰焊接或使用不同的喷嘴形状与材料的水平式焊接。
Selective soldering can be done under an Angle (tilt) like in wave soldering or horizontal with different shape of nozzles and nozzle materials.
选择性焊接可以完成倾斜式波峰焊接或使用不同的喷嘴形状与材料的水平式焊接。
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