Therefore, the description should attempt to describe aspects about the service that can't be determined from the input and output parameters of the service.
因此，描述应该尝试介绍不能通过服务的输入和输出参数确定的各个方面。
2
Optionally, inspect the XPath expressions specified in the Description columns of the input and output links.
可以选择检查输入和输出链接的description列中指定的XPath表达式。
3
The description also shows which output of the source portlet connects to which input of the target portlet, in parentheses.