用户端使用表示层通过中间层以实现和数据库交互。
The client USES the presentation layer to interact with the database through the middle layer.
中间层配合数据存取层中存储的步骤将所需结果显示给用户端(顾客)。
The middle layer coordinates with the stored procedures within the data access tier to present the clients (customers) with the required results.
这些逐步解说主题涵盖了用户端和中介层应用程序的常见资料案例。
These step-by-step topics cover common data scenarios for client and middle tier applications.
通过运行在网管终端上的网络管理代理（SNMP AGENT）和电力线通信局端设备在MAC层进行信息交互，终端实现了对电力线通信局端设备和用户端设备的管理。
The terminal accomplishs to manage the BPL network equipments by means of the communication between its SNMP AGENT and bridge terminal on MAC layer.
通过运行在网管终端上的网络管理代理（SNMP AGENT）和电力线通信局端设备在MAC层进行信息交互，终端实现了对电力线通信局端设备和用户端设备的管理。
The terminal accomplishs to manage the BPL network equipments by means of the communication between its SNMP AGENT and bridge terminal on MAC layer.
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