求翻译：安装粗效、中效过滤器进行第一次空吹。在彻底清扫的基础上，安装空调内的粗效和中效过滤器。对整个空调系统进行空吹，空吹时间为24-36 小时。是什么意思？

Install the coarse, medium filter for the first empty blow. On the basis of a thorough cleaning, installation of air conditioning within the coarse and medium efficiency filter. The entire air-conditioning systems, air blowing, the air blowing time of 24-36 hours.

Installs the thick effect, the effect filter carries on first time blows spatially.In sweeps clear thoroughly in the foundation, installs in air conditioning the thick effect and the effect filter.Carries on to the entire air-conditioning system blows spatially, blows the time is spatially 24-36 hou

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