缩微文献作为情报存贮的载体,它具有存贮密度大、存贮时间长的优点。其作为情报传播的载体,它具有复制、邮递及检索方便的特点。陕西省科技情报所缩微文献室是西北地区收藏专利等特种文献最多的部门。它的主要任务是收集、整理、加工各类缩微文献,为工矿企业、科研单位、大专院校和上级主管部门的读者,答复咨询、代查、提供阅览及复印所需的缩微资料。 Microfilm as a storage medium for information, it has the advantages of storage density, storage time. As a carrier of information dissemination, it has the features of copying, mailing and searching conveniently. Shaanxi province science and technology information microfilm room is the largest collection of special documents and other departments in the northwest region. Its main task is to collect, sort out and process all kinds of microfilm documents, and to provide reply, consultation and proxy for industrial and mining enterprises, scientific research institutes, universities and colleges and higher-level departments in charge, and to provide microfilm for reading and photocopying.