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我国铁路可按不同的海拔高度大致分为平原、中高原、高原三段。由于人体的生理功能受海拔高度的影响,其中氧分压可影响人体各组织细胞能否正常摄取氧而发挥正常组织效应,进而影响劳动效率。以往对高原铁路乘务
China’s railways can be roughly divided into three sections of plain, plateau and plateau at different altitudes. Due to the physiological function of the human body affected by altitude, in which oxygen partial pressure can affect the body’s normal cells can take up oxygen and normal tissue effect, thereby affecting labor efficiency. In the past on the plateau railway crew