secondary refrigerant meaning in Chinese

二次冷冻剂
冷媒
载冷剂

From the national standards about compressor test , four testing methods and three checking methods about were introduced . the secondary refrigerant calorimeter method was introduced and explained mainly and it includes the system composition , the testing principle and the main controlling parameters
主要对第二制冷剂量热器法进行了更为详细的介绍和说明,这主要包括系统的组成,第二制冷剂量热器法的测试原理以及主要的控制参数。