释义 |
DictionarySeereflexsymmetrical H attenuator symmetrical H attenuator[sə′me·trə·kəl ′āch ə‚ten·yə′wād·ər] (electronics) An H attenuator in which the impedance near the input terminals equals the corresponding impedance near the output terminals. symmetrical tonic neck reflex
symmetrical tonic neck reflexIn an infant, flexion or extension of the arms in response to flexion and extension, respectively, of the neck. See also: reflex |