通常来说,宇宙微波背景辐射粒子先发生了蓝移(它们的峰向光谱的蓝端移动),但当它进入超星系团之后又发生了红移。 这两个效果相互抵消。
Normally a CMB photon is first blueshifted (its peak shifts towards the blue end of the spectrum) when it enters the supercluster and then redshifted as it leaves, so that the two effects cancel.
对每一位移分量,我们发现在一个边界的两端处仅有两个值。
For each displacement component we find that there are only two values at the two ends of a boundary.
本文分析了门式起重机腿端约束,侧移及正、反对称屈曲形式对支腿整体稳定性的影响。
This paper analyses the influence of end constraints, side displacement, positive and negative symmetric buckling form on integral stability of gantry crane's supporting legs.
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