Methods a total of 200 patients receiving electronic gastroscopy were divided by random number table into observation group and control group, with 100 cases in each group.
方法200例接受电子胃镜检查患者，通过随机数字表法分为观察组和对照组，每组100例。
In chapter 3, we introduce two methods to control the electronic properties: applying transverse electric field and modifying by chemical group.
第三章中讨论了两种调节锯齿型石墨烯纳米带电子结构的方法：施加横向电场和对边界进行化学修饰。
In this paper, an electronic-control ignition system for automotive engine fueled with compressed natural gas was introduced, which was developed by our group independently.
本文介绍了自主开发的应用于车用天然气发动机的电控点火系统。
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