They just extend the base model classes.

它们只是扩展了基本模型类。

youdao

In this fashion, new model artifacts at all layers can use the corresponding templates to extend the model at that layer.

在此方式中，所有层的新模型构件可以使用对应的模板来扩展该层的模型。

youdao

The sample model does not explore all the available monitoring capabilities, but you can extend the model with more monitoring contexts, alerts, and reports.

示例模型并不会涉及所有可用监视功能，但可以使用更多的监视上下文、警报和报告对模型进行扩展。

youdao

The airline plans to extend this pricing model when it introduces the Airbus A320 jet aircraft later this year.

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He replied that the company preferred to make it easy to extend the data model in any way you wanted instead of trying to predict your needs.

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On June 25th, Tesco announced a deal with America's Safeway group to extend its online-grocery model into the United States.

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