cert_exam:tech_radio_op_1:b:freq:h-ground_reflection
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平面大地上の電波の反射
出題履歴
- H27/1 A15
- H28/1 A15
- H30/7 A15
cert_exam/tech_radio_op_1/b/freq/h-ground_reflection.1577159062.txt.gz · Last modified: by fu