This new contract rationalises operational maintenance services for the Air Traffic Control equipment into a single and flexible performance based arrangement.
这份新合同使空中交通管制设备的运行维护更趋合理、单一、灵活。
This new contract rationalises operational maintenance services for the Air Traffic Control equipment into a single and flexible performance based arrangement.
这份新合同使空中交通管制设备的运行维护更趋合理、单一、灵活。
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