I'm dealing with CAE-systems (Fluent, ANSYS). Up-to-date software is supplied with different "User manuals". To perform appropriate analysis I have to translate some theoretical reference. It's not that simple, but I can do that.

And here's my problem. How can I read in English a mathematical expression like this one?

Every mathematical term has it's name, but I'm ambarassed with to long sentences. And I try to find some "spoken", or symplyfied way to talk about formulas, laws and equations in English. Moreover, it's important issue for me, because most of the derived units, of Thermal Conductivity [W/m-K] or Specific Heat [J/Kg-K] are seemed to be spoken almost the same way.

I have a dictionary but there is only definitions and there's no any information about "how to read" particular formula. It means, that if an author wants to write exprssion, it will be written in symbols, but not in the text.