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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The busbar system of the main switchboard should be equipped with isolators. In this way, if any busbar section is in trouble, we may overhaul the board, which will not affect the ship's navigation.

主电板地汇流排系统应配有隔离开关，这样，即使汇流排的任一区段发生故障时，我们可以检修，而不影响船舶的航行。

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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.

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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.

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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.

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