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sound intensity; sound power density; sound-energy flux density |
声能量通量 : 10 phrases in 7 subjects |
Automobiles | 1 |
Explosives and Explosive Ordnance Disposal | 1 |
Otorhinolaryngology | 4 |
Physical sciences | 1 |
Space | 1 |
Technology | 1 |
Telecommunications | 1 |