11. Top rail material must be strong as it is being compressed by the combined cable forces.12. Every five minutes, the top rail will dump and deposit a ball on the second rail. 13. The MR1 has a MIL-STD-1913 Picatinny top rail , with side and bottom and fore-end rails optional. 14. A top rail can also be purchased and installed with a tool that comes with the carbine. 15. There's a cool drink on the table beside me and my bare feet are propped on the top rail . 16. The extension's western verandah balustrade is original, but the balustrade around the original residence has lost its top rail . 17. A horizontal top rail and bottom rail are attached to fence posts, which are installed upright into the ground. 18. A basic frame and panel item consists of a top rail , a bottom rail, two stiles, and a panel. 19. The three-span, continuous steel multibeam bridge, in the northbound lanes, dates to 1950 and features concrete balusters and top rails . 20. And, you can use the top rail of a fence section as a level by taping the level onto it.
