略語大辞典 [L] 33 HAC hollow anode cathode 中空陽陰極. 放電管の電極構造. 金属蒸気レーザーに用いる.hollow anode cathode; a structure of electric discharge electrodes; e.g. used in a copper vapor laser; a hollow cathode within which the anode is contained; the resulting discharge is confined within both provided that th 丸善「略語大辞典」JLogosID : 11876479