Already operational for some time, the 450s have successfully completed acceptance tests and established the highest standards of reliability, availability and maintainability in their class.
已经操作一些时间，450型无人机已经成功地完成验收试验和确认可靠性、可用率和可维护性在它们标准的最高级。
Long service life of diesel engines in pump station determines the availability and maintainability of the engine, the pipeline safe operation as well as the realization of oil transport targets.
输油泵站柴油机组使用寿命的长短，不但影响着机组的利用率和维护保养费用，而且影响着管道的安全运行和输送任务的完成。
There's little focus on nonfunctional requirements, such as scalability, availability, and maintainability.
很少关注非功能需求，如可伸缩性、可用性和可维护性。
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