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幽霊 ichi1 news1 nf16; 妖怪 news1 nf19; 化け物 ichi1 news2 nf42; 化物; お化け news1 nf23; 御化け ichi1 | |||
スペクトル 放射の (supekutoru) | |||
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物の怪; 物の気 | |||
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信号又は雑音のスペクトル |
espectro : 42 phrases in 11 subjects |
Antennas and waveguides | 2 |
Electronics | 9 |
General | 3 |
Lighting other than cinema | 5 |
Mathematics | 1 |
Nuclear physics | 4 |
Power lines | 1 |
Radio | 7 |
Radiology | 1 |
Satellite communications | 5 |
Telephony | 4 |