arr

abbr. 飞机无线电规程(=Aircraft Radio Regulations)

详细释义：

abbr.

1. =arrival, arrive(s), arrived, arriving (如：arr Liverpool 08:00八时到达利物浦)

2. =arranged by 【音】(如：English folk-song, arr Percy Grainger英国民歌, 珀西・格兰杰改编)