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机译:Positron transport in the interstellar medium
CESR, Universite de Toulouse, CNRS, INSU: 9 avenue du colonel Roche, BP 44346, 31028 Toulouse, France;
LPTA, CNRS, Universite Montpellier II, 34095 Montpellier Cedex 5, France;
LATT, Universite de Toulouse, CNRS: 14 avenue Edouard Belin, 31400 Toulouse, France;