無線工学

Hiroto1138  Apr 6, 2026, 7:23:41 PM Study time: 2 minute(s)
Today's learning: 2
New: 13
Consecutive study days: 5
Difficult review: 1
航空無線通信士 航空英語 無線工学

Hiroto1138  Apr 5, 2026, 3:35:05 AM Study time: 1 minute(s)
Today's learning: 4
Consecutive study days: 4
Difficult review: 1
航空無線通信士 フォネティックコード 無線工学

Hiroto1138  Mar 30, 2026, 6:48:06 PM Study time: 40 seconds
New: 2
Consecutive study days: 1
Difficult review: 1
航空無線通信士 無線工学

Hiroto1138  Mar 27, 2026, 5:45:53 PM Study time: 45 seconds
New: 3
Consecutive study days: 3
Difficult review: 1
無線工学 航空無線通信士