８　空调机组及主要部件的试验空调机组及主要部件的试验是空调机组检修工作中至关重要的一个环节，试验的结果直接反映检修工作的质量。根据《客车空调三机检修及运用管理规程》（以下简称《三机检修规程》）规定，单元式空调机组的检修分为小修、中修和大修，其修程分别为１ 8 air-conditioning unit and the main components of the test Air-conditioning unit and the main components of the test unit is air-conditioning maintenance work is an important part of the test results directly reflect the quality of maintenance work. According to “Passenger Car Air Conditioning Maintenance and Application of Three Machinery Regulations” (hereinafter referred to as “three aircraft overhauls”), unitary air conditioning unit maintenance is divided into minor repair, repair and overhaul, the repair were 1