Key: key (make sure that you mark the key as the external identifier).
key： key(确定您已经将键值标记为外部性标识符)。
Associates an external identifier with the class to be serialized. The fact that the class isn't explicitly referred to implies this requirement.
用一个外部的标识符关联被序列化的类。事实上该类未被显式引用即暗示这一要求。
In a real implementation, each event would include some type of patient identifier that would be used to find the doctor's E-mail address from an external data source.
在一个真实的实现中，每个事件都将包含某种类型的病人标识符，用于从一个外部数据源查找医生的电子邮件地址。
The prefix is used as an identifier for requirements and requirement types in this project when it is referenced as an external project for cross-project traceability (see Listing 3).
当这个项目被当作外部的项目引用或者当进行跨项目跟踪时，这个前缀就可以当作项目需求和需求类型的标识符来使用(请参见列表3)。
For example, a user can change the parameter separator or external request identifier in the URL_Mapping_File.
例如，用户可以在URL_Mapping_File中更改参数分隔符或外部请求标识符。
And such Jazz items should include an "identifier" property by which corresponding external objects are identified.
这样的Jazz项目应该包含有一个“标识符”属性，通过它来识别相应的外部性对象。
If the file that you want to reference through an external entity is not an XML file, you must also specify the format of that file following the system identifier, as in this example for a PNG file.
如果您希望通过外部实体引用的文件不是XML文件，您必须在系统标识符之后指定该文件的格式，下面是一个使用PNG文件的例子。
If the file that you want to reference through an external entity is not an XML file, you must also specify the format of that file following the system identifier, as in this example for a PNG file.
如果您希望通过外部实体引用的文件不是XML文件，您必须在系统标识符之后指定该文件的格式，下面是一个使用PNG文件的例子。
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