If there's a "nice to have" package related to yours, but not required for normal operation of your package, then you should use the "Recommends" or "Suggests" fields instead.
如果有一个“最好有”软件包与您的软件包有关，但却不是它正常运行所必需的，那么您应该对该软件包使用“Recommends”或“Suggests”字段。
If a file in the partial application does not exist in the deployed application EAR, then it is added to the deployed EAR file as a result of update operation.
如果部分应用程序中的文件不存在于已部署的应用程序EAR中，则更新操作会将其添加到已部署的EAR文件。
If you try to use a selector where the operation name does not match, then you get a ServiceRuntimeException saying the operation name cannot be resolved.
如果您尝试使用操作名称不匹配的选择器，那么将收到ServiceRuntimeException，指示不能解析操作名称。
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