文档介绍：国外学位论文下载网址theuniversityofNottingham:///HSRC/JHSR/UniversityofWaterlooElectronicThesisDatabase-Austin/cr/utexas/mainUniversitatsbibliothekMunchen(Germany)-://://:ElectronicThesesandDissertations://://-db/ETD-search/searchYaleUniversityLibrary-db/ETD-search/eWashingtonUniversityhttp://etd-gw./ETD-db/ETD-search/searchthePennsylvaniaStateUniversity'selectronicThesesandDissertationsArchives-db/ETD-search/search15、-db/ETD-search/search16、TheNewJerseyInstituteofTechnology'sElectronicTheses&、PennsylvaniaStateUniversitylibrary-db/ETD-search/search18、OhioStateUniversity/、LinkopingUniversityElectronicPress/diss/20、VirginiaPolytechnicInstituteandStateUniversity://(绝对可下)