FEATURES: Ball bearing, switching flexibility, no noise, long life.

主要特点：滚珠轴承，关灵活，无噪音，寿命长。

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SONET technology in terms of low complexity and overhead, but DTM includes signaling and switching to increase the flexibility and avoid the hierarchical structure of SONET.

就低的复杂度和开销而言，DTM与SONET技术相拟，但DTM还包括信令和交换，以增加灵活性和避免SONET的层次结构。

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Labeled Optical Burst Switching (LOBS) network, combing the Multi Protocol Label Switch (MPLS) and OBS technologies, has the advantage of high flexibility and high efficiency.

标签光突发交换(LOBS)技术将多协议标签交换(MPLS)和光突发交换(OBS)技术结合起来，具有更高的灵活性和效率。

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You also have the flexibility of selecting different billing plans for either SIM, switching between them at your convenience.

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