When CO 2 reached 6 mg/m 3 and xylene reached 1 285 mg/m 3 the blood indices changed very markedly, thus suggesting a condition of compensative respiratory acidosis.

• 当CO2浓度达到6mg/m3，Xyl浓度达到1285mg/m3时血液指标出现非常显著的变化，为代偿性呼吸性酸中毒。