The company offered little 'by way of explanation' for the delays. [=as a way of explaining why there were delays]
Some of the more technical terms need/require 'explanation'. [=they need to be explained]
a likely/probable/possible/plausible 'explanation of' how the accident occurred
(..) so here I am. And that's your answer, "Omnis cellula e cellula." "Life comes from life." I'm really not in the mood. You don't want an explanation? No, I don't. Thank you, though. Have a great life. You remind me of her. (SCOFFS) (..)2014 The Fault in Our Stars