11. Internally the Epiphany also gives the user the ability to alter the marker's internal firing air volume . 12. In addition to the modes of the body structure, the enclosed air volume exhibits Helmholtz resonance modes. 13. "Note : Carburetors are largely dependent on air volume flow and vacuum, and neither directly infers mass. 14. In doing so, these air bearings cause dead volumes ( non-compressible and thus weak air volume ). 15. Next-day air volume increased 10.2 percent. 16. Normal air volume will increase by more than 3 . 5 million packages processed on the peak day. 17. While the'air volume 'of the hull was, the total volume of the gas cells at 100 percent fill was. 18. Swimming birds have been observed to exhale before dives, reducing their air volume and thus their overall body density. 19. Because the engines do not need to control air volumes , they lack a butterfly valve in the intake tract. 20. Some patients suffer from complications, like cranial bleeding and sickle cell disease, that rule out the smaller air volume .