The trackpad also establishes a flat layer beneath the screen that looks sleek and smooth in line with the four navigational buttons.

触碰板与四个导航键一起位于屏幕下方，形成了一个整齐的层次，显得圆滑流利。

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The device management network setup is usually very simple: a flat-layer two-type network on a 10/100 switch is acceptable for device management purposes, so no further explanation is needed.

设备管理网络的设置通常非常简单：在 10/100 兆交换机上平层的两类网络可以满足设备管理要求，所以无需多做说明。

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This layer is responsible for running the application's business logic and getting the relevant data (for example, running an SQL command or reading a flat file).

这层负责运行应用程序的业务逻辑，获取相关数据(例如，运行SQL命令或者读取平面文件)。

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For many of us, home means a flat in an apartment complex, where the building management often provides an extra layer of security.

CNN: ASIANOW - TIME Money | Keeping It Safe | 11/99

Mongolian spots (technically named congenital dermal melanocytosis) are flat bluish-green, gray or light brown areas where cells called melanocytes have been trapped in a layer of the skin called the dermis.

CNN: What are Mongolian spots?