Locking test between the main switchboard and emergency switchboard.

主配电板与应急配电板自检联锁试验。

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The main switchboard and the distribution boxes have been inspected and found in good working condition.

主配电板和分电箱已检查过，发现其工作状态良好。

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This paper expounds the ship power system and the function of main switchboard, and briefly introduces the use of virtual reality technology and software which the author used in this paper.

本文还阐述了船舶电力系统的组成和主配电板的功能，并简单介绍了虚拟现实技术以及所用到的软件。

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The main switchboard was answered at noon one day with a recorded message saying office hours were from 10 a.m. to 5 p.m.

FORBES: Tea Time and Internet Time

I'd included phones in the rooms, but had forgotten the front desk console and main switchboard system: add twenty-five thousand dollars to the list to allow for that.

FORBES: What Does It Take To Start A Hotel?

According to the news agency, 20 different phone lines were tapped, including not just work phones and the AP's main switchboard, but also the journalists' home and cell phones.

CNN: Obama won't let media do their job