If you change the value axis in such a way that it becomes smaller than the size of the data points, you can use this property to set whether to show the data labels.

如果更改数值轴之后，数值轴变得小于数据点的大小，则可以使用此属性设置是否显示数据标签。

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Like the early days of the web, he said, many people were now tagging data with the labels and identifiers demanded by semantic web technology.

BBC: NEWS | Technology | Yahoo makes semantic search shift

These tags are similar in concept to the familiar HTML labels that help format text and other data on webpages.

BBC: NEWS | Technology | Yahoo makes semantic search shift

The Nutrition Information Initiative, launched last year, put detailed labels on McDonald's packaging with data on calories, protein, fat, carbohydrates and salt content.

ECONOMIST: How a Frenchman is reviving McDonald's in Europe