31. At that time, this roddon was above the nearby peat and was wide on its curved surface . 32. Many models show buildings and structures with sensual folded and curving surfaces that may never be built. 33. The engine allows for curved surfaces , which make a remarkable difference in how realistic its environments appear. 34. It is adequate for smooth, classical curved surfaces of radii down to about 10 to 20 nm. 35. Sanding sponges, for cleaning curved surfaces , and sanding cord, for working in small gaps, can be useful. 36. Typical lens elements have spherically curved surfaces . 37. Both are sleek-looking next-generation fighters with dominating tail designs and curved surfaces that blend fuselage and wing. 38. The combination of angled and curved surfaces was based on the third generation of the I4 engine. 39. The game is now capable of displaying curved surfaces , something not possible in the previous Quake titles. 40. This makes them even more flexible, thus more suited for producing a smooth finish to curved surfaces .