短語詞組短語backward -acting regulator 反向作用調(diào)節(jié)器backward d acting regulator 反向作用式調(diào)整器regulator backward -acting 后控式調(diào)整器backward acting regulator 反向作用式調(diào)整器;反饋作用調(diào)節(jié)器backward acting decoder 后向譯碼器 返回 backward acting