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人类呼吸系统的生理功能,一般在30岁以后便随着年龄增长而趋向衰退,60岁以后衰退速度更为显著。这种现象主要是其组织结构退行性变的结果。
The physiological function of the human respiratory system, generally after 30 years of age tends to decline with age, the recession rate after 60 years of age is even more significant. This phenomenon is mainly the result of the degeneration of its organizational structure.