相反，它只需要程序员将属性标记为持久性的，并识别出能代表对象唯一标识符(或者主键)的属性。
Instead, it requires the developer only to denote the attributes to be persisted and to identify the attribute to represent the object's unique identifier (or primary key).
每个模式元素都被全球唯一的对象标识符（OID）所标识。
Each schema element is identified by a globally unique Object Identifier (OID).
GUID对象，用作驱动程序和芯片集对的唯一标识符。
GUID object that is used as a unique identifier for the driver and chip set pair.
其次，操作系统项，将创建指定的操作系统映像和引用RAMDISK设备对象 （通过其全局唯一标识符或GUID）。
Second, an operating system entry is created that specifies the operating system image and references the RAMDISK device object (by its globally unique identifier, or GUID).
除了为每个模式元素分配一个唯一的对象标识符之外，您还应该为每个元素提供至少一个文本名。
In addition to assigning a unique object identifier to each schema element, you should provide a least one textual name for each element.
除了为每个模式元素分配一个唯一的对象标识符之外，您还应该为每个元素提供至少一个文本名。
In addition to assigning a unique object identifier to each schema element, you should provide a least one textual name for each element.
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