WDM network will play important role in future backbone networks. It is necessary that WDM networks have the capability against component failure and support multi-priority.

WDM网络将在未来的骨干网中扮演重要的角色，具备抗毁能力和支持多优先级都很必要。

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In the era of knowledge economy, colleges and universities have become the backbone of our society worldwide, and are playing increasingly important roles.

放眼世界，知识经济时代的大学已进入社会中心，发挥着越来越重要的作用。

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