为了实现科技期刊编辑、出版发行工作的电子化 ,推进科技信息交流的网络化工程 ,我刊现已入网“万方数据网络系统数字化期刊群”。今后 ,向本刊投稿并被录用的稿件 ,将一律由编辑部统一纳入万方数据网络系统 ,进入因特网提供信息服务。凡有不同意者 ,请投稿时声明 ,该文若经刊 In order to realize the sci-tech periodical editor, the electronic publishing and distribution work and the networking project to promote the exchange of scientific and technological information, I have appeared in the “Wanfang data network system digital periodical group”. From now on, manuscripts that have been submitted to this publication and accepted for employment will be uniformly incorporated into the Wanfang Data Network System by the Editorial Department and will be provided with information services on the Internet. Anyone who disagrees, please declare at the time of submission