This paper is about how to design a mould for an electrical switch box.

本文是针对一个电器开关盒的模具设计。

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Distribution box and switch box should be arranged in dry and ventilated place.

配电箱与开关箱必须安装在干燥，通风的场所。

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Note : Install carefully and line up so that the top of switch box is reasonably level.

注：小心安装和排列使得开关盒顶部具有适当的水平度。

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At lockups, news organizations have been required to plug their computers into a device called a "black box" tied to a central switch, which blocks computer transmissions until the embargo lifts.

WSJ: U.S. Probed Media Firms on Data Reporting

They claim to have a magic box, a variation of a telecommunications switch that can eliminate the bottleneck known as the Last Mile, that final stretch of cable, fiber or copper into homes.

FORBES: Forget the Garage

What people do not want to have to do, he says, is switch back-and-forth between the set-top box UI and the smart TV UI.

FORBES: TiVo: Cash (And Legal Wins) Piling Up; Will Someone Buy It?