DNT may not serve its intended purpose.

禁止追踪也许不能取得预期目标。

It should always be appropriate for its intended purpose.

它应该永远是适当的预期目标。

This is great for its original intended purpose of lighting up the indoors.

这正符合它最初的目的，室内照明。

It is the intended purpose assigned by the manufacturer to the device that determines the class of the device and not the class assigned to other similar products.

该原则是通过制造商的预期用途来进行分类的，该原则不对其他类似产品进行分类。