Our goal is to create trucking advancements that deliver more savings to our customers and cleaner air. Weâre aiming to make our fleet 100% more energy efficient by 2015. This includes keeping 26 billion pounds of carbon dioxide out of the air between now and 2020.
add-on therapy. Any treatment given to bolster or enhance the effectiveness of a previous one, esp. when the first treatment proved not to be fully effective.
The terms add-on and add-in are often, but not always, used synonymously. The term add-in can refer to individual chips you can insert into boards that are already installed in your computer. Add-on, on the other hand, almost always refers to an entire circuit board, cartridge, or program.