Flight Standards Department:Responsibility for Maintenance in Continuous Airworthiness of Aircraft.
飞行标准司：负责航空器持续适航工作中的维修工作。
Magnetic, direct d. c. drive built for continuous, maintenance free operation.
直接磁力驱动技术，免维护，长期连续运转。
Magnetic, direct d. c. drive built for continuous, maintenance free operation.
直接磁力驱动技术，免维护，长期连续运转。
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