Bottom, left to right: wall switch U.

底部，留下给右边：墙壁开关U。

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The switch is compatible with common switch and wall switch.

不 需另行配线，可以和普通开关、墙壁开关直接互换安装。

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As he flicked the wall switch, the light flickered, then flared into normal brilliance.

他轻弹了下墙上的开关，灯光闪烁了一阵，才恢复正常光亮。

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Both decisions reinforce trends that have been changing Wall Street in recent years: the switch from physical to electronic markets and the dispersal of operations away from lower Manhattan into the suburban areas of the greater New York metropolis and beyond.

FORBES: Briefing Book: Howard Lutnick

He says the reason pensions are underfunded is Wall Street convinced pensions to make a historic switch from bonds to stocks.

FORBES: Lerach Blames Pension Woes On Pay-To-Play -- Theirs, Not His

Wall Street worries that ever more copper-wire customers will quit and switch to cellular, with its expensive transmission towers and subsidized handsets.

FORBES: Whitacre's Way