The engagement manager needs to add a layer of management and communication to the work of the technical project managers, and will be responsible for the framework that ties their projects together.

做挡板，业务经理需要跟技术项目经理的工作间加一个管理和沟通的层，并且为把他们的项目捆绑到一起的框架负责。

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Network configuration, spectrum allocation, two-way communication, protocol at lower layer and network management for HFC are analysed and studied.

文中对这种网络的网络结构、频谱划分、双向通信、低层协议以及网络管理进行了分析研究。

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Hardware Abstraction Layer has three models of internal communication, virtual driver and equipment management.

硬件抽象层共分为内部通信模块、虚拟驱动模块和设备管理模块三部分。

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