When writing academic and scientific literature, are there any good guidelines to when you can omit defining an industry standard abbreviation? Are there any guidelines to where you can draw the line? When looking the this up I found a few sources like this blogpost that suggested using dictionaries - if it is in the dictionary as a word, you don't need to explain it.
However, in my field (electrical engineering) there are many industry standard abbreviations that are not in any dictionaries. Examples would be terms like opamp (operational amplifier), ADC (analog-to-digital converter), CPU (central processing unit), MOSFET (Metal-oxide-semiconductor field-effect transistor). Applying their rule would mean I have to define every term, but this would seem somewhat excessive to me.
How do I deal with industry standard terms that are still abbreviations? The safe bet would be to always define them in their first use, but are there any general rules to use when dealing with these?