区域热流 meaning in Chinese

regional heat flow

Abstract : there are offered many ways how to improve work of a spark plug . but one of the m ost important problems has not been solved yet . this is a thermal mode operation of a spark plug . the ideal spark plug should be instantly heated at the moment of occurrence of a spark and instantly cooled down in expectation of the foll owing electrical pulse . thus it balances between preservation of heat for self ? c leaning from scale and its removal in avoidance self ? ignition . in this article a uthor managed for this time to offer a spark plug with capability “ self ? regula tion ” of heat flux removed from a zone of ignition . essence of the offer is a t ip ， which is transparent for heat flux . it is produced from single crystal of sap phire
文摘:在如何提高火花塞的工作质量方面有多种方法,但是其中最重要的一个问题还没有得到解决,那就是火花塞工作的热学模型问题.理想的火花塞应该能在点火的瞬间被立刻加热,并且在接下来的电脉冲过程中迅速冷却,由此在热量的存储与散发之间取得平衡,以避免自点火.本文力图展示一种具有自动调节源于点火区域热流能力的火花塞,其技术的关键是顶部绝缘体材料,它是由蓝宝石单晶制作,而非传统的氧化铝陶瓷