The first step is to declare a class that extends from WebTestCase, shown in Listing 3.
第一步是声明一个从WebTestCase扩展而来的类，如清单3所示。
With a service interface defined, the next step is to implement it in a class that extends GWT's RemoteServiceServlet class.
定义了服务接口之后，下一步就是在扩展GWT的remoteserviceservlet类的类中实现该接口。
Part 2 guides you step by step through the creation of a custom plug-in that extends the Lotus Sametime user interface.
第2部分引导您一步步地创建扩展LotusSametime用户界面的自定义插件。
After you've downloaded AspectJ, the next step is to create an aspect that extends OVal's GuardAspect.
下载了AspectJ后，下一步是创建一个可扩展OValGuardAspect的方面。
Then I will further discuss the next step towards CHS: cyber-human systems, that extends our horizon of research attacks.
进一步，本讲座将就向CHS（网络-人系统）进行延伸当前研究范畴的扩展讨论。
Then I will further discuss the next step towards CHS: cyber-human systems, that extends our horizon of research attacks.
进一步，本讲座将就向CHS（网络-人系统）进行延伸当前研究范畴的扩展讨论。
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