Wednesday's extra second will bring the world's high-tech atomic clocks back into sync with time as defined by Earth's rotation.
经过周三闰秒之后，全世界的高技术原子钟将再次与地球自转保持同步。
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In this paper, the symmetry analysis method is used to compute and analyse the rotation inertia, polarizability, selection rule in mechanics, electricity, atomic and molecular spectroscopy.