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《示性类》内容简介：The text which follows is based mostly on lectures at PrincetonUniversity in 1957. The senior author wishes to apologize for the delayin publication.The theory of characteristic classes began in the year 1935 with almostsimultaneous work by HASSLER WHITNEY in the United States andEDUARD STIEFEL in Switzerland. StiefeI's thesis, written under thedirection of Heinz Hopf, introduced and studied certain "characteristic"homology classes determined by the tangent bundle of a smooth manifold.Whitney, then at Harvard University, treated the case of an arbitrary spherebundle. Somewhat later he invented the language of cohomology theory,hence the concept of a characteristic cohomology class, and proved thebasic product theorem.
本词汇自1995年问世以来，深受广大读者厚爱，曾连续三次得印，1998年被评为书。此次修订除收集近年来在化学化工领域涌现的新词新义外，同时考虑到本书版因时间紧迫有些专业收词尚不够全面，还在精细化工、石油化工、高分子科与材料、生物化学、生命科学、生物技术、日用化工、环境科学与工程等方面补收了词汇。全书共约9万余条。为节省篇幅，本次修订时还删去了一些引起不必要的词组，并纠正了版中印时造成的某些错误。希望读者在使用过程中发现不妥之处随时向我们反映并抽出宝贵意见。
