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1. Based on the number set, a new commutative semi-group is established in the integer number and extended in number fields of rational number, real number and the complex number.
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2. Based on the number set, a new commutative semi-group is established in the integer number and extended in number fields of rational number, real number and the complex number.
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3. Vibration effects on the atomic clock (atomic frequency standard) could be divided into three parts: atomic resonance effects, crystal oscillator effects and servo-loop effects.
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4. They have the same atomic number and hence nearly identical chemical Behaviour But different atomic masses.
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5. Radium, atomic number 88, atomic weight 2260254, is a natural radioelement, elements were derived from Latin, is intended to "ray."
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Atomic Physics And Atomic Nucleus Physics
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Atomic Physics And Atomic Nucleus Physics
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atomic mass number
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atomic number
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atomic mass number
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