The eight-year contract includes training and instruction, site management, engineering support, and operation and maintenance for the aircrew training devices.
该合同长达八年，包括培训指导、现场管理、工程技术支持以及训练设备的操作维护。
Technique experience in engineering, manufacturing, construction, operation, or maintenance: score one (1) credit for each full year with a maximum of five (5) credits for this aspect of experience.
具有工程、生产制造、建筑、操作或维护方面的技术经验：每一整年工作经验计为一（1）学分，以上方面的工作经验，最高分为五（5）分。
Consequently, maintenance and operation are important parts of highway engineering.
因此养护和运营也是公路工程的重要部分。
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