Core group processes open network connections to each other and use those connections to monitor and determine whether a process is running, stopped, or has failed.
核心组进程建立通向彼此的网络连接，并使用这些连接监视和判断某个进程是否正在运行，或者发生故障。
2
At the core of Monitor are observer objects.
Monitor的核心是观察器对象。
3
This device is a set of new electric power quantity monitor, this paper discusses its core software development.