9Burton RR, Whinnery JE. Biodynamics: sustained acceleration[M]//Dehart RL, Davis JR. Fundamentals of aerospace Medicine, 3rd ed. Philadelphia: Lippincott Williams I: Wilkins, 2002 : 122-153.
10Cot: R, Tripp L, Jennings T, et aI. Effect of inspiratory volume on intrathoraeie pressure generated by an L-1 maneuver[J]. Aviat Space Environ Med, 1986,57 (7) : 1035- 1038.