短語詞組短語threshold action current 門檻動作電流threshold firing current 臨界點火電流值threshold ignition current 臨界點火電流值tetanization threshold -current 痙攣電流閉值let -go-threshold-current 擺脫電流聞值low threshold current 低域值電流threshold current density 閾電流密度;[電子]閾電流密度Threshold of no current 無threshold of perception current 感知電流;感知閾值 返回 threshold current