non-scheduled flight 双语例句
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1·Make monthly maintenance plan according to annual plan, flight plan, Maintenance Program and aircraft status, forecast the landing time and down time for monthly scheduled check and non-routine task;
按照年度计划、航班计划、维护方案、飞机状况，制定月维修计划，并预测每月定检、完成非例行工作所需的落地时间和停场时间；
