国产偷窥熟女精品视频大全_在线美女视频在线亚洲_日韩成人在线激情视频_色悠悠尤物视频在线观看

CHINESE

Research

Current Position: Home» Research» Research Achievements» Publications»

R&D trend analysis based on patent mining An integrated use of patent applications and invalidation data

作者:韓曉彤,朱東華,雷鳴,Tugrul Daim

發(fā)表刊物:Technological Forecasting and Social Change

TOP