To model this, UML 2 provides the instance specification element, which shows interesting information using example (or real) instances in the system.

为了这种结构建模，UML 2提供实例规范元素，它显示在系统中使用例子(或现实)实例的值得注意的信息。

youdao

Strings constants with the same value are guaranteed by the VM specification to use the same instance.

具有相同值的字符串常量是由 VM 规范保证使用同一个实例的。

youdao

For specification information on instance data, see Appendix B5.

有关实例数据的规范信息，请参阅附录B5。

youdao

The specification won't include collision detection, for instance, because 10-Gigabit won't be running half-duplex.

CNN: 10-Gig Ethernet gets a voice