amygdala
发表于 2025-3-28 17:03:00
http://reply.papertrans.cn/47/4641/464033/464033_41.png
郊外
发表于 2025-3-28 21:41:06
http://reply.papertrans.cn/47/4641/464033/464033_42.png
有发明天才
发表于 2025-3-29 02:27:14
http://reply.papertrans.cn/47/4641/464033/464033_43.png
转折点
发表于 2025-3-29 06:09:05
http://reply.papertrans.cn/47/4641/464033/464033_44.png
humectant
发表于 2025-3-29 09:05:35
The Relationship between Technical Change and Economic Performance in Mechanical Engineering: Some different sectors is: ‘How important a factor is technical change in determining the economic performance of each sector?’ Further, not only is it essentiàl to determine the . of technical change that is necessary for commercial success, but it is important also to determine the . of that change, i.
lymphedema
发表于 2025-3-29 11:40:15
http://reply.papertrans.cn/47/4641/464033/464033_46.png
Overdose
发表于 2025-3-29 15:58:16
http://reply.papertrans.cn/47/4641/464033/464033_47.png
易达到
发表于 2025-3-29 23:48:03
http://reply.papertrans.cn/47/4641/464033/464033_48.png
情爱
发表于 2025-3-30 00:45:53
Product and Process Innovation in a Changing Competitive Environment,ment, and with the stimulation, development and use of technological innovations in industry. Economists have been actively interested in the costs and risks of development and of investment in change, private and social returns to research and development, firm size and market structure as they
choleretic
发表于 2025-3-30 06:53:18
Co-operative Research and Development in the United States,arly in the more long-term and basic kinds of R & D. The generally accepted validity of this problem has prompted the US Government to ask whether or not it should play a role in supplementing industrial R & D. To answer that question one must first explore alternatives to government sponsorship. On