求翻译：冷却系的主要功能是把受热零件吸收的部分热量及时散发出去，保证发动机在最适宜的温度状态下工作。冷却系按照冷却介质的不同可以分为风冷和水冷，如果把发动机中高温零件的热量直接散入大气而进行冷却的装置称为风冷系。而把这些热量先传给冷却水，然后再散入大气而进行冷却的装置称为水冷系。由于冷却水冷却均匀，效果好，而且发动机运转噪音小，目前汽车发动机上广泛采用的是水冷却。是什么意思？

Heated parts cooling system's main function is to absorb some of the heat is distributed in a timely manner, guarantee the work under the most appropriate temperature of the engine. Cooling under different media can be divided into air cooling and water cooling, if the high temperature parts in the engine's heat directly into the atmosphere and cooling device called air cooling system. Heat is first passed to the cooling water, and then scattered into the air and cooling device known as the Department of water. Due to the cooling uniformity, good effect, and the engine running noise, is currently widely used automotive engine is water cooled.