The compressor, the âheartâ of the carâs air conditioning system works like a pump taking refrigerant, (R-12 Freon in older cars, R-134a in 1995 and newer cars) and pressurizing it, passing it along to the evaporator.
pontoon - (nautical) a floating structure (as a flat-bottomed boat) that serves as a dock or to support a bridge. barge, flatboat, hoy, lighter - a flatbottom boat for carrying heavy loads (especially on canals) boat - a small vessel for travel on water.
Depending on the type of bridge, there can be one or more abutments. A pontic is the fake tooth (or teeth) that the bridge aims to replace in the mouth. Generally, there is one pontic placed per missing tooth. A bridge for teeth may fall into one of the following three categories: Standard bridge.