单词：oat grasses
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Estimating crossing LV NDB 1123. 402. 预计1123飞越LV NDB台。 Passing POU at 43, maintaining FL310, estimating MLT at 55, next NLD. 403. 当前位置POU，时间43分，高度310，预计MLT55分，下一位置NLD。 BKM 47, FL170 descending to
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