The Engineering Index Annual abstract number is found at the beginning of each abstract.
在每篇ei摘要的开头，是工程索引年刊的文摘号。
The Engineering Index Annual is an organized compilation of bibliographic citations and abstracts covering the world's technological literature in all engineering disciplines.
《工程索引》年刊是以条目摘要形式编辑而成的技术文献检索工具。 其内容覆盖世界范围内所有工程领域。
Basing on the statistic and analysis of the Chinese technology periodical that have been registered by "the Engineering Index" (EI) from 1996 to 2001, this paper gives some advices how to contribute.
本文通过对美国《工程索引》(EI) 1996 ~ 2001年收录中国科技期刊的统计分析，为广大科研工作者科学应用ei提出了建议。
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