针对城域传输网的特点，提出了稀疏波分复用方案。
Aiming at the character of optical transport network of MAN, a solution of CWDM is put forward.
这种情况下，无论是设备硬件还是网络配置都具有巨大成本优势的稀疏波分复用（CWDM）技术是非常适用的。
So CWDM is quite suitable for MAN with its advantages in cost of hardware and network configuration.
这种情况下，无论是设备硬件还是网络配置都具有巨大成本优势的稀疏波分复用（CWDM）技术是非常适用的。
So CWDM is quite suitable for MAN with its advantages in cost of hardware and network configuration.
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