For example, if programmers have an existing application in COBOL that they want to call, they can develop the code easily in EGL and have EGL generate the service to call this application.
例如，如果程序设计人员拥有一个希望调用的用cobol写的现有应用程序，那么他们可以用EGL很容易地开发代码，并且让egl生成调用此应用程序的服务。
This example from the SCA application has the more-complicated call from the calculator service to a subtract service method.
这个来自SCA应用程序的示例具有更加复杂的调用，包括计算器服务和减法服务方法等等。
The callback informs the GWT application of whether the remote service call has been executed successfully.
回调告诉 GWT 应用程序远程服务调用是否成功地执行了。
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