三、外文检索
数据库或者网址名称：ScienceDirect(SDOL) （） 检索词：Single chip microcomputer principle，application 检出条数：2072
检索步骤描述：登录ScienceDirect(SDOL) （），选择Advanced search。 1）选择Journals，输入关键词Single chip microcomputer principle，并且含有关键词application，检索结果2072条。 举例：（5条）
[1]Yishan Zeng,Jun Qian. Designs of a fire detecting and fire pre-warning system based on single chip microcomputer. Procedia Engineering, Volume 7, 2010, Pages 360–365
[2]Yanping Zhou. Research and Practice of Course Design on Microcomputer Principle and Interface Technology. Procedia Engineering, Volume 15, 2011, Pages 4211–4215
[3]Chaofeng Pan. Research on motor rotational speed measurement in regenerative braking system of electric vehicle. Mechanical Systems and Signal Processing, Volumes 66–67, January 2016, Pages 829–839
[4]Jiuchen Fan. A Density On-line Measurement and Control Technology of Medium Density Fiberboard(MDF). Energy Procedia, Volume 17, Part A, 2012, Pages 152–156
[5]Xin Qi. Development of Digital Microscale Dissolved Oxygen Analytical System. Procedia Engineering, Volume 15, 2011, Pages 5232–5238
2）选择Books，输入Principle and application of single chip microcomputer，选择source title，检索结果0篇。