略語大辞典 [MIL] 20 RISIC resonance inhibiting sound isolation connector 共鳴抑圧無音コネクタ. 潜水艦用のパイプ継手.resonance inhibiting sound isolation connector; a pipe connector part; e.g. to suppress noise in nuclear submarines; [MIL:Mech:Ind]. 丸善「略語大辞典」JLogosID : 11857840