短語詞組短語distributed fiber raman amplifier 分布式光纖拉曼放大器distributed fiber raman amplifier fra 分布式光纖拉曼放大器composite distributed fiber raman amplifier 分布式混合光纖拉曼放大器distributed fiber raman amplifier dfra 分布光纖拉曼放大器s -band ditributed fiber raman amplifier 波段分布式光纖拉曼放大器distributed fiber Raman gain amplifier 分布式光纖拉曼增益放大器distributed erbium -doped fiber amplifier 分布式摻鉺光纖放大器 返回 distributed fiber amplifier