【请帮我翻译下这段英语（人工翻译）Atypicalscatteringexperimentinvolvesabeamwithmanyincidentparticlesallwiththesamekineticenergy.ThecoordinatesystemisshowninFigure5.7.Theincidentparticlescomefromtheleftwit】

　　请帮我翻译下这段英语（人工翻译）

　　Atypicalscatteringexperimentinvolvesabeamwithmanyincidentparticlesallwiththesamekineticenergy.ThecoordinatesystemisshowninFigure5.7.Theincidentparticlescomefromtheleftwithaninitialvelocityvinthe+xdirection.Wetakethecenterofthebeamandthecenterofthetargettobeonthex-axis.Theimpactparameterbistheperpendiculardistancefromtheinitialtrajectorytoaparallellinethroughthecenterofthetarget(seeFigure5.7).Weassumethatthewidthofthebeamislargerthanthesizeofthetarget.Thetargetcontainsmanyscatteringcenters,butforcalculationalpurposes,wemayconsiderscatteringoffonlyoneparticleifthetargetissufficientlythin.