略語大辞典 [C] 23 RHC regional holding company (アメリカの)広域電話会社. 地域ベル. ベビー ベル. regional holding company; or regional Bell; or baby Bell; there are seven RHCs; a regional telephone company which owns LEC(local-exchange carrier)s including independent telephone companies and the Bell operating companie 丸善「略語大辞典」JLogosID : 11857744