After power on - screen turns on, but is whole black, no messages at all.

接通电源后-屏幕打开，但全是黑色的，根本没有任何消息。

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Second, the peak brightness of this light engine occurs in the first minute after power on.

其次，该光源的峰值亮度出现在开机一分钟以后。

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The hardest task that television asks of anyone is to turn the power off after he has turned it on.

电视让人们做的最困难的任务是在打开电视后把电源关掉。

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American-led forces ousted the Taliban from power in late two thousand one, after the terrorist attacks on the United States.

VOA: special.2009.06.15

On January 15th, the engines of a US Airways plane lost power shortly after takeoff from LaGuardia Airport in New York City.

VOA: special.2009.01.30

The new Japanese ruling party, which took power after 50 years of rule by its political opponents, ran on a platform that promised a more assertive posture toward the United States.

VOA: standard.2009.10.18

After losing power on its most recent journey, the ship drifted until Tuesday, when two tugboats began moving it toward shore.

NPR: Carnival Cancels 12 More Cruises On Troubled Ship

In Wrexham, Llanarmon Dyffryn Ceiriog school is shut after power cables fell on to a mobile classroom.

BBC: Thousands without power after storms

You'll find two volume buttons on the right and power on the left (give the screen a second or so to turn on after clicking the power button).

ENGADGET: Nook HD review: a high-def tablet with the heart of a reader