“激冷”的英语？

金属表面的空气燃料混合气层为较冷的金属所激冷.The layers of air - fuel mixture next to the metal surfaces are chilled by the cooler metal.从加工性能上说,铬钼激冷铸铁比镍铬激冷铸铁加工性能好.From the machinability, the Mo cold cast iron is liable machine.研究了天然无定形石墨砂热物理...