How often should you test lifeboat engine? Who takes charge of the operation? Who takes of maintenance and repair work?
您多长时间试验一次救生艇机？谁负责操纵艇机？谁负责维护和修理艇机？
Network management system is the important part of Terabit Router system, It takes charge of operation, administration and maintenance of the network devices.
网管系统是T比特路由器系统的重要组成部分，它担负着对路由器系统及组网环境下的操作、管理和维护功能。
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