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imitation stamps
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imitation stamps
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imitation stamps
仿印邮票
邮政部门为集邮展览、集邮活动、集邮品制作等仿照已经停用的早期珍罕邮票,重新制版印制的“邮票”。由于明文宣告是仿印,在其票幅、纸质、刷色、齿孔、暗记等细节上与真邮票有所区别,有的在仿印邮票票背上印有“仿制品”字样。
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Raman laser
Raman lidar
Raman-Nath diffraction
Raman Nath effect
Raman-Nath effect
Raman optical amplifier
Raman scattering
Raman scattering lidar
raman scattering spectrometry for pharmaceutical analysis
Raman scattering spectroscopy
Raman scattering thermometry
Raman shift
Raman-shifted laser
Raman, Sir Chandrasekhara Venkata
Raman spectra
Raman spectral calculation
Raman spectrometer
Raman Spectroscopy
Raman spectroscopy
Raman spectrum
raman spectrum
raman time domain reflectometer
Ramanuja
Ramanujan
Ramanujan 6-10-8 identity
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