The top compartment (with gray color) indicates the DataObject instance name and its real type; the bottom compartment indicates the contained properties.
顶部间隔（灰色）指示DataObject实例名称及其实际类型；底部间隔指示所包含的属性。
To solve Tom's problem, we must know the real type of Tom's business.
要解决汤姆的问题，我们必须知道汤姆的业务的真正类型。
A unit test might not be able to pass a real type to a generic method that it is testing.
单元测试可能无法将实类型传递给正在测试的泛型方法。
A real type defines a set of Numbers that can be represented with floating-point notation.
实数类型定义了一组可以以浮点记号描述的数。
This attribute modifies the volume for Music files only. Values range between 0 and 1 as a real type value.
这项属性可以修改音乐播放声音的大小，数值在0和1之间变化。
But maps lack some of the features expected of structured data: they have no real "type" (without added metadata) and, unlike classes, they can't be extended with new behavior.
但是映射缺乏一些结构化数据的预期功能：它们没有真实的“类型”(在不添加元数据的情况下)，不像类那样，它们不能通过新的行为扩展。
But maps lack some of the features expected of structured data: they have no real "type" (without added metadata) and, unlike classes, they can't be extended with new behavior.
但是映射缺乏一些结构化数据的预期功能：它们没有真实的“类型”(在不添加元数据的情况下)，不像类那样，它们不能通过新的行为扩展。
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