Spare engine: We will provide at least one spare engine ready in China for each aircraft.
备用发动机：我们能为每架飞机在中国至少提供一台备用发动机。
A design of automatic equipment with high or low rotor for aircraft engine was proposed.
提出了一种某型航空发动机高、低压转子棘轮器装置的设计方案。
A design of automatic equipment with high or low rotor for aircraft engine was proposed.
提出了一种某型航空发动机高、低压转子棘轮器装置的设计方案。
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