English - Spanish online dictionary for context words, does it exist?

I need to find an online resource to translate words (more like whole compound terms) from english to spanish. The thing is, that a regular dictionary doesnt work because most of these words belong to a specific context: Sound Engineering (and other subjects around it like electricity, magnetism, acoustics, electronics, etc)





So, for instance, I need to translate the word "lead" to spanish, in the context of electricity, cables.


This is its definition: "A lead is a complete assembly of cable and connectors".





Example 2. Translate the term "LLF", meaning "lower limiting frequency " to the appropiate spanish engineering term.





Any references are most welcome.





Or if anyone knows the translation of the word "lead" (with the definition above), please share it!





Thanks!|||"a lead", "a cable" in Spanish is "una correa" or "un cable".





Word Reference is pretty good


http://forum.wordreference.com/forumdisp鈥?/a>


They have forums too.





Otherwise invest in a big engineer麓s dictionary.