- P(gun)]
l(wi)Ǿꠘ(gu)O(sh)Ӌ
ÄW(xu)оl(wi)Ǿ꠵\(yn),(j)gĶx,м(x)ƌ(do)gcl(wi)Ǿꠘ(gu)΅(sh)֮gP(gun)ϵ,(j)P(gun)ϵxһN^õطӳg\(yn)ӷ(wn)Եָ(bio),(wn).һ܉ڃ(ni),Nl(wi)Ǿ꠵ˮƽֱͬ(wn)µķ(wn)rg.Y(ji),@Nꠘ(gu)βܝMˮƽʹֱͬrҪ.ɴ˳l(f),cо˿ʹgėl,ó(yng)ĽY(ji)Փ.ˮƽijҪlsP(gun)ϵʽ,ֱijҪlɂsP(gun)ϵʽ.ɴ˗lͬr֪,ǾꠟoMˮƽʹֱͬrҪ,,ҪǾ꠲ſ_(d)Ҫ.,ձýY(ji)Փ,O(sh)ӋһˮƽʹֱͬrǾ.óܛO(sh)ӋY(ji)M(jn)˷,Y(ji)˱O(sh)Ӌ_.
ߣ ۭԌ LIU Lei XI Xiaoning ߆λ ƼW(xu)cϹ̌W(xu)Ժ,Lɳ,410073 gƌW(xu)W(xu) ISTIC PKU ӢĿ CHINESE JOURNAL OF SPACE SCIENCE ꣬() 2007 27(2) ̖ V412 P(gun)I~ l(wi)Ǿ \(yn) (wn) (gu)O(sh)Ӌl(wi)Ǿꠘ(gu)O(sh)ӋP(gun)£
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