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astronomical clock tower
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astronomical clock tower
Encyclopedia
理学
〔天文仪器〕
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astronomical clock tower
水运仪象台
11世纪末叶中国北宋的天文学家苏颂(图1)制作的集观测天象、演示天象、计量时间和报告时刻的机械装置于一体的综合性观测仪器。
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atomic dimensions
atomic dipole moment
atomic dispersion
atomic distribution
atomic electron
atomic electron shell
atomic element
atomic emission spectrometry
atomic emission spectrometry (AES)
atomic emission spectroscopy
atomic emission spectrum
atomic emission spectrum (AES)
atomic energy
Atomic Energy Authority
atomic energy industry
atomic energy law
atomic energy level
atomic energy level diagram
Atomic Energy Research Establishment
Atomic Energy Society of Japan
atomic event
atomic expression
atomic first principle
atomic fluorescence
atomic fluorescence mercurymeasured spectrometer
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