The measure device consists of two quadrant detectors, which measure alignment errors in real-time.

该系统采用两个四象限探测器构成对准检测装置，实现对掩模版对准误差的实时检测。

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In defocusing detection system based on dual-quadrant detector, the defocusing curve would be affected if the light spot moves but not along the direction of the boundary between two quadrants.

在由二象限探测器构成的离焦探测系统中，当光斑移动方向与探测器分界线有一固定或变动夹角时，将引起离焦曲线变化或不稳定。

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"If you're making eye contact with a friendly person in quadrant one, everyone to their left will think that you're talking to them," says Praeger. "Then do the same thing in quadrant two."

“如果你看着第一角落的一个熟悉的人，在他们左边的每个人都会认为你是朝他们讲，”普雷格说，“然后向第二角落做同样的事情。”

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The right things are those Quadrant Two actions, important but not urgent, that bring the most leverage, but are forever delayed by practicing procrastinators.

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Pick out two or three in each quadrant and look at each face for a good five seconds before moving on to the next.

FORBES: Magazine Article

We weren't surprised to see HTC's black beastie repeatedly fall behind the 1.5GHz Skyrocket, but we certainly didn't expect a 0.3GHz difference to forge such a drastic gap in Quadrant scoring between the two.

ENGADGET: HTC Vivid review Mobile