为扩展网络规模，采用波分复用技术实现了双波长环网。

Dual wavelength rings have been designed with wavelength division multiplexing to expand the network scale.

youdao

为扩展网络规模，采用波分复用技术实现了双波长环网。

Dual wavelength rings have been designed with wavelength division multiplexing to expand the network scale.

youdao