The continuing, widespread ( and neglected) importance of improvements in mechanical technologies 7 t) G6 r) C* j5 C; M% D
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Parimal Pate1 and Keith Pavitt- o x" D9 `$ q7 N( X- c
Science Policy Research Unit, Unil~ersity of Sussex, Falmer, Brighton BNI 9RF, UK
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发表于 2010-7-8 23:59:12
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