Two sets of ground support equipment; and four sets of spare parts.
两套地面支援装备以及四套备件。
Aircraft ground support equipment - General requirements - Part 4: noise measurement methods and reduction.
飞行器地面支持设备。一般要求。第4部分：噪声测量方法和噪声降低。
Aircraft ground support equipment - General requirements - Part 4: noise measurement methods and reduction.
飞行器地面支持设备。一般要求。第4部分：噪声测量方法和噪声降低。
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