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rubidium clock
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rubidium clock
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rubidium clock
铷钟
利用铷气泡中铷蒸气原子超精细跃迁谱线频率校正晶体振荡器频率得到的原子钟。即铷原子钟。又称铷原子频率标准、铷频标。
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rubidium clock
铷钟
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Employee benefits design
Employee Development
Employee Director
employee involvement
employee lifecycle management
employee relations
Employee remuneration
employee safety behavior
employee scheduling
employees' involvement of democratic management of enterprises
Employees Leaving the Lumière Factory
Employee Stock Ownership Plan
Employee Supervisor
Employee turnover
employer
employer-employee relationship
employer liability insurance
employer liability insurance system
employers liability
Employment
Employment Act of 1946
employment admittance system
employment agency
employment agreement
Employment Agreement for Graduates of General Colleges and Universities
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