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{{U}}Efficient{{/U}} air service has been made available through modern technology.

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in the air    by air    on the air    off the air  
camshaft; fresh air  camshaft; starting air  electronic motor which is controlled by a computer; fresh air  electronic motor which is controlled by a computer; starting air  
Air Waybill  Master Air Waybill  House Air Waybill  Branch Air Waybill  
noise coming from that air starting valve  continuous operation of the starting air compressor  zero air pressure in the air starting system  overheated starting air pipe to the cylinder head  
Cooling the air to a temperature just above dew point  Heating the air to a point at which moisture will boil off ,then re-cooling it  Cooling the air to a point below dew point, then reheating it  Heating the air and then cooling it to a point below dew point  
An air compressor  An indicator cock  An air distributor  A safety valve  
air transport  air freight  air delivery  plane  
combustion control air system  supply air system  ships service air system  low pressure deck air system  
refreshing the air  making person upset  adjusting the air humidity  adjusting the air temperature  
An air receiver  An operating valve  An automatic valve  An air distributor  
broken inlet valves  broken discharge valves  pulsations in the air distribution system  overloading of the air distribution system  
Air Mail  Air Transport  Air Express Service  Air Express Mail  
Holding the valve open for a long period  Increasing the starting air pressure used  Opening the stating air valve quickly  Reducing the starting air valve size  
an auxiliary reservoir  a controlling air bottle  an emergency air compressor  a main air compressor  
control air system  forced draft air system  supply air system  ships service air system  
in the air   on the air   by the air   through the air  
charge air receiver  scavenging air belt  turbine  air cooler  
in the air    by air    on the air   in the open air  
the pressure of the starting air is high enough  there is enough air in the air reservoirs  the air is supplied into the cylinders in the appropriate sequence  all of the above  

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