本刊自今年第1期起,就贯彻国家标准GB 3179-89《科学技术期刊编排格式》的规定对编排格式作如下改进,请作者、特约通讯员对来稿稿件作相应的变动。1.每期的重点文章在题名与正文之间加列“文摘”和“关键词”(中文和英文均列)。文摘应按照GB6447-86《文摘编写规则》的要求,简明的介绍文章的主题范围和内容梗 Since the first issue of this year, we have made the following improvements to the layout format in compliance with the provisions of the national standard GB 3179-89, “Formatting Periodicals of Science and Technology Periodicals”. Please write the corresponding changes to the manuscripts submitted by authors and special correspondents. 1. The key articles of each period include “Digest” and “Key Words” (both in Chinese and English) between the title and the main text. Digest should be in accordance with GB6447-86 “Digest Writing Rules” requirements, a concise introduction of the article’s subject area and content