2Spoich F M, Debowski M T. Effects of noise, exertion and thermal load on temporary auditory threshold shift and on fatigue. Med pr, 1991,42(2): 321～325
3Waligora J M, Horrigan D J, Nicogossian A. The physiology of spacecraft and space suit atmosphere selection. Acta Astronautica 1991, 23:171～177
