最近一个时期,同行们都反映科技资料交流越来越困难了。尤其生产单位,实行市场经济与计划经济结合以后,出现了同行业竞争的新形势。因此,在科技资料交流上出现了新情况,有的是高价控制,有的是留一手,严 In the recent period, all of our colleagues have reflected that the exchange of scientific and technological information has become increasingly difficult. In particular, after the introduction of a combination of market economy and planned economy, a new situation emerged in the same industry. Therefore, there have been new developments in the exchange of scientific and technological information, some of them being controlled at a high price, others being left alone and severely restricted