现在的等离子弧切割机大多靠气体压力来控制流量，因为当枪体孔径一定时，控制了气体压力也就控制了流量。
Now the plasma arc cutting machine part on gas pressure to control the flow, because when gun aperture, the gas control certain pressure and you control the flow.
在相同结构和装药量的条件下，复合射孔在井下作业能够产生较高的枪内压力，容易引起接头的剪切脱落失效。
Under the conditions of similar structure charging rate, higher pressure in the perforators can be produced in downhole operation by using combined perforation, failure would be caused in its joints.
介绍一种复合射孔器模拟试验装置和动态压力测试方法，可对复合射孔器射孔单元组成模拟枪体，在相配套的模拟试验装置内进行试验。
Introduced are a simulating device of fracture perforators and a dynamic pressure testing method. Some simulation body composed of combined perforator units can be tested in the simulation device.
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