即维修人员通过观察、听、触摸和简单的测试以及对液压系统的理解，凭经验来判断故障发生的原因。
That is the maintenance personnel through the observation, listen to, touch and simple test as well as to the understanding of the hydraulic system, with experience to judge the cause of the failure.
2007年，宇宙飞船二号飞行器的推进系统在流场测试中于地面爆炸，三名维修工人遇难，另有三名以上人员受伤。
In 2007, the propellant system of a SpaceShipTwo craft exploded on the ground during a flow test, killing three mechanics and injuring three more.
使用测试设备测试电路的连续性，以确保系统的兼容性和安全性，随后进行安装，更换或维修。
Test continuity of circuits using test equipment to ensure compatibility and safety of system, following installation, replacement or repair.
给系统添加制冷剂，检查和测试的调节器，校准系统，并进行日常维护或维修。
Recharge system with refrigerant, check and test regulators, calibrate system and perform routine maintenance or servicing.
飞机电气机械师和技术人员维修和大修，修改，安装和测试飞机电气系统和设备。
Aircraft electrical mechanics and technicians repair and overhaul, modify, install and test aircraft electrical systems and equipment.
测试表明：系统运行是可靠的，诊断结果是有效的，维修决策是可行的。
Tests show that the system is dependable, the diagnosis is effective and the maintaining decision is feasible.
职责： （1）实施需求分析、系统设计、程式编制、测试、训练和日常软件应用维修；
Duties: (1) To conduct requirement analysis, system design, programming, testing, training and on-going maintenance of software applications;
检查、测试、校准、维修并安装电气和航空电子系统部件。
Inspects, tests, aligns, repairs and installs aircraft electrical and avionic system components.
自动测试系统已投入生产运行，满足机载设备大修时的测试、诊断需求，较大地提高了维修效率。
Now being in used, the ATS meets the need of test and diagnosis in airborne equipment complete overhaul, and maintenance efficiency has been increased greatly.
该系统可对三种不同型号的机载雷达进行自动测试和故障诊断，提高了维修效率，降低了维修成本。
The system can perform automatic test and fault diagnoses of three types of radar. It improves servicing efficiency and reduces servicing cost.
由于现代武器系统复杂化程度不断扩大，使得检测和维修难度增大，比如测试时间变长、维修保障费用增加。
Because the modern weapon system became more and more complexity, it will lead the fault detection and maintenance more difficult, such as the fault detecting time became long and the cost increases.
新系统可以提高轨道测试仪的故障点定位精度，更快、更准地找到故障点，提高了维修效率。
The new system improves the accuracy of failure-point positioning. It helps to find the failure points more quickly and accurately, thus increasing the efficiency of maintenance.
本文所设计的BDP-4地平仪自动测试系统具有测量精度高、自动化及智能化程度高等优点，已在各航空维修厂投入使用。
The ATS of horizon BDP-4 designed in this paper with the characteristics of high measuring precision, automation and intelligent level has been used in aeronautic service factories.
本文所设计的BDP-4地平仪自动测试系统具有测量精度高、自动化及智能化程度高等优点，已在各航空维修厂投入使用。
The ATS of horizon BDP-4 designed in this paper with the characteristics of high measuring precision, automation and intelligent level has been used in aeronautic service factories.
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