这个价位不是很高，但相比于其他汽车型号，它可算是笔财富了。
It might not sound like much, but it's a fortune compared to some other car models.
数据类别类似于抽象基类，比如，一个类别可以表示所有的汽车型号。
Data categories are like abstract base classes; a category might be able to represent all models of car, for instance.
最经济和最合适的泵可以选择从这个各种各样的汽车型号。
The most economical and suitable pump can be selected from this wide variety of models.
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