短語詞組短語attenuation e ratio 衰減比ACR Attenuation crosstalk RATIO 衰減串?dāng)_比attenuation damping ratio 衰減阻尼比vibration attenuation ratio 振動衰減比Water vapor attenuation ratio 水汽衰減率the reflectivity attenuation ratio 反射衰減率nominal attenuation ratio 標(biāo)稱衰減率attenuation ratio of increment 增量衰減率Oxygen Attenuation Ratio 氧衰減率 返回 attenuation ratio