机械飞行控制系统已经被主动式电传飞行控制系统所取代，电传系统通过计算机来响应飞行员的操作指令，使操作更安全有效。

Mechanical systems have been replaced with electrically activated fly-by-wire controls that use computers to interpret the pilot's commands in the safest and most efficient way.

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有关机构也将研究操作和安全问题，将无人驾驶飞行器与当前的空中交通控制系统整合在一起。

The agency also will investigate the operation and safetyissues associated with integrating unpiloted aircraft into today's air trafficcontrol system.

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余度设计是提高电传飞行控制系统安全性与任务可靠性的一种重要手段。

Redundancy management is a key means of improving the reliability of safety-critical flyby-wire flight control systems.

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