In either case, the deployment descriptor for each session bean (Task or Service) simply includes an EJB-REF for each session bean that it actually USES.

在两种情况下，每个会话bean (Task或Service)的部署描述符仅仅包括他所实际使用的每个会话bean的EJB - REF。

youdao

However in this case, the link's ref attribute will be set to the value "null," and the link's text content will be hidden unless a flag to show null-link content is set to true.

但是，在这种情况下，这个链接的ref属性会设置为“null”值，而且链接的文本内容会隐藏起来，除非将显示空链接内容的标志设置为true。

youdao

In the case of Whipple's disease, it even led to the identification of a previously unknown bacterium (Tropheryma whipplei) as the cause (Ref.4).

比如在研究惠普尔氏病的时候，就发现了之前不知道的致病细菌Tropheryma whipplei (Ref . 4)。

youdao