What you mean by dsr?

"DSR" can stand for many things, depending on the context. To help me understand what you're asking, could you please provide more information? For example:

* What is the context of your question? Are you talking about a specific field like technology, finance, or something else?

* Do you have any additional words or information related to "DSR"? For example, "DSR ratio," "DSR calculator," or "DSR in banking."

Once you provide more context, I can give you a more accurate answer.