On the basis of primary factors influencing puncture of mediums, the capacity performance index of voltage resisting and puncture test 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。
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。
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.
方法：回顾性分析31例正常压力脑积水（NPH）患者临床症状、病程、年龄、腰椎穿刺放液试验等因素对脑室-腹腔分流术的影响及预后效果。
Objective To study the effect of blood sampling with puncture trocar on insulin and C peptide release test.
目的探讨套管针采血对胰岛素和C肽测定结果的影响。
The results showed that the occult blood test for injection needles, lumbar puncture needles, bone puncture needles and thorax puncture needles was negative.
结果，注射针头、腰穿针头、骨穿针头、胸穿针头的隐血试验均为阴性；
The results showed that the occult blood test for injection needles, lumbar puncture needles, bone puncture needles and thorax puncture needles was negative.
结果，注射针头、腰穿针头、骨穿针头、胸穿针头的隐血试验均为阴性；
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