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我们对模拟战争条件下进驻导弹阵地全封闭坑道的第二炮兵某部３０名指战员的不适症状进行了统计，检测了进驻坑道前后的肺功能、动脉血气分析，观察了坑道内进驻前后的温度、湿度、气压、Ｏ２和ＣＯ２浓度的变化。观察结果显示：随进驻坑道时间延长，不适症状的人数增加，差
We surveyed the discomfort symptoms of some 30 officers and men of a certain second artillery unit stationed in a totally closed tunnel in a missile position under the conditions of the war and tested the pulmonary function and arterial blood gas levels before and after the tunneling operation and observed the temperature before and after entering the tunnel. Humidity, air pressure, changes in O2 and CO2 concentrations. The results showed that: with the extension of the tunnel time, the number of symptoms increased, poor