为适应我国信息化建设需要,推进科技期刊编辑出版工作现代化,扩展科学作品学术交流渠道,本刊全文入编《中国学术期刊(光盘版)》、《中国期刊网》、以纸质印刷品、光盘和国际互联网等多种方式提供信息服务。本刊所付稿酬中已包含上述服务的作者著作权使用费,不再另付。作者如不 In order to meet the needs of China’s informatization construction, to promote the modernization of sci-tech periodicals editing and publishing, and to expand the academic exchange channels for scientific works, the full text of this journal has been compiled into “China Academic Journal (CD)”, “China Journal Net” And the Internet and other means to provide information services. The manuscripts paid in this publication already include the author’s fee for use of the copyright of the authors of the above services and will not be paid separately. The author is not