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
(..) awkward oganism, and think... ... Why are all these parts where are they? Yes, but surely everything has a logical explanation. I know, but do not be so boring. Just saying, for example... What if... your anus were in your armpit? (..)2013 Her