reliable operation and easy maintenance
        2. Conditioning additives, its working principle is that by  saving additive to add to the air conditioning, clear air conditioner  condenser and the attachments, and in the circulatory system to form a  protective film to improve air conditioning efficiency, reduce air  conditioning wear and prolong life, to save energy purposes. Because of  low investment, high efficiency, simple structure, reliable operation  and easy maintenance, etc., laptop battery is currently used in passive  filtering harmonic suppression and reactive power compensation the  principal means. active filtering technology as a key technology to  improve power quality.
        3. Air conditioning maintenance  and repair, its working principle is that for filter and outdoor  condenser cleaning, laptop battery to improve heat conduction  efficiency, reduce air resistance and friction, the base station air  conditioner outdoor unit installation direction of remediation, air  conditioner outdoor unit mounted in a housing measuring west, south  measured, adjusted to the base housing the east, north measure to reduce  air conditioner outdoor unit sun. Laptop battery if the load equally,  then the rated output current of each module is 18.5% module efficiency  is greatly reduced.
        4. Air conditioning adaptive  technology, its working principle is based on temperature, humidity  detection module, automatically change the air temperature and humidity  set parameters, less compressor working hours, automatic air  conditioning control the physical location of the backup and switching  time, according to the engine room heat source density of the location  and reasonable allocation of air conditioning cooling capacity.  With  the continuous improvement of capacity, and its scope of application  from the user's own harmonic compensation for the entire power system to  improve power quality direction.
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