机内测试(BIT)技术是复杂电子系统的必需设备。
Built-in test (BIT) technique is a suit of necessary equipment of the complicated electronic system.
随着电子系统越来越复杂，故障诊断难度加大。
More complicated electronic systems become, more difficult fault diagnosis becomes.
航空电子系统的作战效能评估是一个非常复杂的问题。
The fight effectiveness evaluation of avionics system is still a very complicated issue.
航空电子系统的作战效能评估是一个非常复杂的问题。
The fight effectiveness evaluation of avionics system is still a very complicated issue.
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