escape cock英 [ɪˈskeɪp kɒk]美 [ɪˈskeɪp kɑːk]网络 安全塞; 放气旋塞; 排放阀英英释义nouna valve in a container in which pressure can build up (as a steam boiler)Synonym:safety valverelief valveescape valveescape
