optical signal to noise ratio

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1.	光信噪比电信术语(11) ... 光回损 Optical Return Loss 光信噪比 Optical Signal to Noise Ratio 光监控通路 Optical Supervisory Channel ... www.for68.com
2.	光信号杂讯比 communication - Excel ... 光信号杂讯比 optical signal to noise ratio 光信号处理 optical singal processing ... www.docstoc.com
3.	光亯号杂讯比 Companding a Law ... optical signal to noise ratio 光亯号杂讯比 optical signal processing 光亯号处理 ... www.docstoc.com