The first consignment delivered to Estonia included firing equipment, training missiles, simulators and testing and maintenance equipment, required for using this equipment.

爱沙尼亚接收的第一批装备包括发射装置、训练弹、模拟器以及测试和维护设备。

youdao

The time for testing and maintenance is invested when the developer first creates the asset and does not have to be redone with each new project utilizing the reusable assets.

当开发人员首次创建资产时就投入了测试和维护的时间，而无需对每个利用可重用资产的新项目重新进行此工作。

youdao

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。

youdao

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