True, the robot De Ming (Alex Fong) featured in the movie isn`t a bird or a plane, but neither is he a character that will linger in your mind beyond 2009.

诚然，片中的机器人德明（方力申饰）既不是鸟也不是飞机，但他也不会是2009年度令你印象深刻的电影角色之一。

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You could say the position vector at another time, or at any time, but in fact, what's also true is that the velocity vector is in the plane.

你可以说，位置矢量在另一个时间或在任何时间，无论如何，位置矢量始终在这个平面上。

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An equation for the calculation of true shear strain was derived from the integration of infinitesimal shear strain in plane shearing process with constant principal shear strain direction.

对切应变主轴不变的平面简单切变过程，通过无穷小应变的积分，导出了真实切应变计算公式。

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This general observation is particularly true of the aerospace plane, whose technologies will be of such vital importance to U.S. security and commercial interests for generations to come.

CENTERFORSECURITYPOLICY: The National Aerospace Plane

This is because in several respects the plane is a true technology leader.

FORBES: Seeing Beyond Boeing's 787 Crisis

He said the hijackers had stabbed a flight attendant -- and to find out if what he had heard was true -- that another plane had crashed into the World Trade Center in New York.

CNN: Calls indicate Flight 93 passengers went down fighting