In October there will be seen the first variation in the position of the polar star in relation to the lines from the Great Pyramid.

将在10月看见在那里北极星的位置到大金字塔连线的第一变化。

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It is proved that the vanishing of the first variation of the functional J is equivalent to all the equations which should be satisfied in the dynamics of rigid-plastic continua.

证明了泛函j的一次变分为零相当于满足刚塑性体动力学的全部方程。

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The 1000 Genomes Project completed its first map of human genetic variation.

千人基因组计划完成了人类遗传变异的首份图谱。

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They carried out the first genome-wide analysis of the genetic variation between different regions of the same tumour using samples of kidney cancer.

BBC: DNA analysis shows huge genetic diversity in tumours

Hence the careful wording of pub quiz questions about the first woman MP, which usually include some variation of the phrase "to sit in the Commons".

BBC: Numbers game

About three-quarters of the variation of guaranteed first-round money is explained by draft position, Rishe's analysis shows.

FORBES: Magazine Article