Other people say it's just a continuation of a festival in honour of the Celtic god of Mirth but most popular belief is that it's a reaction to the change in season and the start of spring.

另一种说法认为，愚人节只是为了向凯尔特的欢乐之神致敬而流传下来的一个节日。不过，大多数人相信，愚人节标志着季节的变化和春天的来临。

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The vertical electric magnetic force between LIM and reaction plate which dynamically varied with the air gap is simplified as special linear spring.

直线电机和反力板间的垂向电磁作用力随气隙值动态变化，将其简化为特殊的线性弹簧。

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Finally, new "Life Luck" spring tube pillow comes out and gets good reaction from lots of consumers and good economic and social benefit.

终于新一代“一生缘”弹性管枕心问世了，并且一经推向市场便收到了良好的经济和社会效益。

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His answer is that today's Jewish establishment did not spring from American Jewish liberalism, but was a reaction against it.

ECONOMIST: Inside the corridors of power, there we sat down and wept