monitor

监督器, 级长, 监听员, 班长, 监视器, 告诫物

an ironclad vessel built by Federal forces to do battle with the Merrimac; display produced by a device that takes signals and displays them on a television screen or a computer monitor; electronic equipment that is used to check the quality or content of electronic transmissions; a piece of electronic equipment that keeps track of the operation of a system continuously and warns of trouble

监视, 监听, 监督

监视；监控