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一、冷却水温要适当冷却是发动机正常工作所必需的。冷却可以保证发动机受热机件的工作温度不超过材料所允许的范围,减少受热机件的热应力,保证受热机件在高温工况下的机械性能;冷却还
First, the cooling water temperature to be properly cooled engine is required for normal work. Cooling can ensure that the working temperature of engine heat-affected parts does not exceed the allowable range of materials, reduce the thermal stress of heated parts and ensure the mechanical properties of the heated parts under high-temperature conditions.