Methods The electromyography ( EMG), motor nerve conduction velocity ( MNCV), F wave conduction velocity ( FWCV) and somatosensory evoked potential ( SEP) were examined in 97 cases of cervical radicular spondylosis, and were compared with 50 normal persons.
方法对97例神经根型颈椎病患者进行肌电图(EMG)、运动神经传导速度(MNCV)、F波传导速度(FWCV)和体感诱发电位(SEP)检测,并与50名正常人组对比。
however, unbalanced differential current can occur at normal conditions when traveling-wave differential protection is applied.
然而行波差动保护在应用时, 即使线路内部无故障也会产生一定的不平衡差流.
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