Here's the principal difference between the two: Software engineering is typically a group effort, with differing and often fluid roles and responsibilities for the group members.
And that's the principal difference between the two concepts.
This is also the principal difference between technological and biological evolution.
Beyond those points, though, the principal difference between the two plans is money.
He said that the principal difference between naloxone and naltrexone was that naltrexone was a longer-acting drug.
The principal difference between the Talmuds is the same difference that distinguishes jurisprudence from philosophy.
The principal difference between fixed and floating exchange rates is how the country adjusts.
The principal difference between the narcotics trade and legitimate commerce, of course, is that the drug business must operate in the shadow of the law.
What do you see as the principal difference between you and your opponent in your fundamental approach to the national security problems facing the United States?
The principal difference between the two men was less economic than geographic: Vaughn lived in the hills; Capps was from the valley.
The principal difference between mica and glass is the effect of temperature on crude oil/brine/solid interactions.
