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.
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。
The principle and method of testing oil body humidity are discussed, according to the changed trait in resonance frequency and quality factor of resonance cavity when microwave acting on oil body.
根据微波通过油体后，谐振腔的谐振频率和品质因数均会发生相应的变化的特点，探讨了测量油体湿度的原理及所采取的方法。
The testing result of present test method of body bending on seat is influenced largely by leg length of testee's and the efficiency is comparatively low.
目前我国体质测量中，现行的坐位体前屈测量方法的测量成绩受被测者下肢长度影响较大，测量的有效性较低。
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