Finally, the system testing and maintenance.

最后介绍了系统的测试及维护。

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Regression testing is an important activity in the process of software testing and maintenance.

回归测试是软件测试和维护过程中的一个重要活动。

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This program defines guidelines for inspection, testing and maintenance of emergency eyewash and shower equipment.

该程序为紧急洗眼器和喷淋设备提供检验，测试和维护的指导。

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An emergency backup generator is only allowed to operate for 200 hours every year and only in the event of an emergency power failure or for routine testing and maintenance.

FORBES: Backup Generators Are the Bad and Ugly of Decentralized Energy

Since the April 20 explosions and fire, BP is carefully evaluating the subsea blow-out preventers used in all our drilling operations world-wide, including the testing and maintenance procedures of our drilling contractors using the devices.

WSJ: Tony Hayward: What BP Is Doing About the Gulf Gusher

The rest of it - the five watchtowers, concrete perimeter wall, 57 concrete 'kiosks' (which stored the nuclear warheads) and other testing and maintenance buildings - have deteriorated and the 'scheduled monument' has now been put on the at-risk register by English Heritage.

BBC: The battle to save England's heritage