The privileges section contains two grids: one to specify the list of users, and one to specify the user privileges of the selected user.

privileges 区段包含两个表格：一个用于指定用户列表，另一个用于指定所选用户的用户权限。

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For instance, if you want to subdivide each of the two grids in the previous listing into two units where one unit is twice as wide as the other, you write the code shown in listing 10.

举例来说，如果您希望将之前清单中的两个网格继续划分为两个单元，其中一个单元是另一个单元的两倍宽度，可以编写如清单10所示的代码。

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Note that the two grids they choose can be the same.

注意，被选择的两个格子可以是同一个。

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Engineers believe that the engine probably shut itself off when it was first started because of metallic grit or other contamination between the two high-voltage grids at the rear of the advanced engine.

CNN: Deep Space probe's ion engine working smoothly, NASA says

Research by Accenture for the World Economic Forum exposes two key challenges facing utilities in the roll out of smart grids.

FORBES: Hard Lessons For Smart Grids

Secondly, Cisco Extended Memory technology allows each blade server in a cluster to support more than twice as much memory as a conventional two-socket server, which makes it easier to construct grids that process terabytes of data in memory.

FORBES