短語詞組短語distributed fiber raman amplifier 分佈式光纖拉曼放大器distributed fiber raman amplifier fra 分佈式光纖拉曼放大器composite distributed fiber raman amplifier 分佈式混郃光纖拉曼放大器distributed fiber raman amplifier dfra 分佈光纖拉曼放大器s -band ditributed fiber raman amplifier 波段分佈式光纖拉曼放大器distributed fiber Raman gain amplifier 分佈式光纖拉曼增益放大器distributed erbium -doped fiber amplifier 分佈式摻鉺光纖放大器 返回 distributed fiber amplifier