名词
中文翻译：Unknown
同义词：
['quadrupole moment', 'quadrupole moment', 'quadrupole moment']
例句：
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1. The magnetic field of the Earth's core is a source of quadrupole moments.
地球核心的磁场是四极矩的来源。
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2.In nuclear physics, quadrupole moments are used to describe the shape of nuclei.
在核物理学中，四极矩被用来描述核的形状。
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3.The quadrupole moment of a proton is a measure of its spin.
质子的四极矩是其自旋的一种度量。