Most of the text has a very smooth edge and does not appear choppy at all, but that's not the case for the small text at the top and bottom of the page.

大部分文字都有平滑边缘，但页面顶部和底部的小字则保留了锯齿。

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In the case of a plane, it's the difference in pressure on the top and bottom of its wings that keeps the craft afloat.

以飞机为例，它双翼上方与下方的压力各不相同，正是这不同的压力使得飞行器保持悬浮。

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Use case scenario comparing top-down and bottom-up Web services development.

比较自顶向下和自底向上的Web服务开发的用况场景。

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The unit is packaged in a magnesium alloy top-and-bottom case that is 20 times stronger than ABS plastic.

ENGADGET: GammaTech rugged T7Q launches at $2k and up, promptly steals your iPad's lunch money

If social media, and in this case, LinkedIn, manages to make true on its promises and delivers solid top and bottom-line growth, then talk of a bubble is no more than pure speculation.

FORBES: LinkedIn Valuation Debate Rages On: Mathematicians 'Affirm' Bubble

For example, it may be the case, as is shown in recent studies, that income at both the top and bottom has grown, but income at the top grew faster.

FORBES: In Asking About Income Inequality, Obama Begins With The Wrong Question