每个日历月的计划服务中断时间不会超过十二个小时。

There will be no more than twelve hours of Scheduled Downtime per calendar year.

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春节庆典从第一天的前一天晚上持续到第一个日历月的第15天的元宵节。

Celebrations traditionally run from the evening preceding the first day, to the Lantern Festival on the 15th day of the first calendar month.

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在过去24个日历月内签字批准至少10名学生驾驶员首次单飞或转场单飞。

During the preceding 24 calendar months, he or she has endorsed at 10 students pilots for first solo or cross country flights.

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