One analogy for this relationship is that of a relay race, where the first runner represents requirements management and the next runner, receiving a baton hand off, represents test management.

这种关系类似于一场接力赛，第一个跑的人代表着需求管理，下一个接受接力棒的人代表测试管理。

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This system optimizes the test and replacement sequence of the aviation relay by using reasoning, and the costs are reduced by as much as 50%.

该系统利用推理对航空继电器检测和替换顺序进行了优化，节约费用约50％。

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Over-current relay test.

过电流脱扣试验。

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And an optical mission to test laser relay capabilities from earth geosynchronous (GEO) orbit will soon follow.

FORBES: Future Of NASA's Aging Deep Space Network Lies In X-Rays And Lasers

Going forward, the LLCD will play a vital part in NASA's 2017 Laser Communications Relay Demonstration, a key test of laser-based relay comms in future missions.

ENGADGET

The data are sent from the orbiting outpost to NASA's Tracking and Data Relay Satellites, which relay it to the satellite reception dishes at NASA's White Sands Test Facility in New Mexico.

ENGADGET: AMS detects excess of positrons, could suggest existence of dark matter