When monitor trace gases of the atmosphere or pollution gases by means of co laser, one must correct for watervapor attenuation according to the actual condition of the atmosphere.
在用CO激光监测大气微量气体或污染气体时，必须根据实际大气状况，进行必要的水汽订正。
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In Chemical Oxygen-Iodine laser (COIL) system, the watervapor produced from the generator of singlet oxygen can have severe negative effects on the output of the laser power.