科技文献的常规检索方法简介山西省机械设计院任永兰当今是改革开放的时代，同时也是科学技术高速发展的信息时代，信息量之大是前所未有们。科技人员在选定或考虑某一课题对，随时可以从四面八方得到所需信息，比如：广播、电视、报纸、广告、展览（销）会、协作网、联谊... Routine retrieval method of scientific and technological literature Brief introduction Shanxi Province Machinery Design Institute Ren Yonglan is now an era of reform and opening up, but also the rapid development of science and technology information age, the unprecedented amount of information. In selecting or considering a certain subject, scientists and technicians can get the necessary information at any time from all directions, such as: radio, television, newspapers, advertising, exhibitions, sales, networking, networking ...