| 摘 要： | The shape of the spectral line is determined by the ieteractions of theradiating molecule with its surroundings.Study of the microwave and Ramanline shapes arising from the O_2 deluted in He will yield information con-cerning the basic intermolecular forces and molecular collision dynamics forthis system~1,also spectral linewidth parameters can give informatioll for thestudy of ejected gas at the rear of the plane and missile. The exact calculation of line shape spectral function is extremely timeconsuming,and has not been attempted.At low pressure individual spectral tran-sitions are well resolved,we are interested in the linewidth parameters.Calcu-
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