On the basis of primary factors influencing puncture of mediums, the capacity performance index of voltage resisting and puncturetest is emphatically pointed out.
根据影响绝缘材料击穿的主要因素，着重阐述了交流耐压击穿装置的容量指标问题。
2
The major failure causes included puncture muff, severe vasovagal reactions, the absence of a distinct trigger zone and incomplete analgesia after the procaine test.
失败的主要原因包括卵圆孔穿刺失误，迷走神经反应，无扳机点和普鲁卡因测试不能达到完全不痛。
3
Methods: The efficacy of shunting was retrospectively analyzed according to 31 NPH patients′ symptoms, medical history, age and test of draining cerebrospinal fluid(CSF) with lumbar puncture.