This article analysed the properties and the top Angle design of the dispersion prisms.

分析了色散棱镜的特性及其顶角设计问题。

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Snodgrass then struck the crossbar with a curling strike but Forest would not lie down and McCleary, who replaced Anderson in the opening half, wrong-footed Barry Bannan before hitting an exquisite strike from a tight angle that found the top corner.

BBC: Sport - Football - Leeds 4-1 Nottm Forest

It also helped seeing my videographer, Anthony Nielsen in a 2nd plane rolling upside down over the top of us to get a better angle filming our plane.

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Brush a third piece phyllo with butter and top the previous one, also at an angle.

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