[1]孟现召,冯岩鹏.某型航空活塞式发动机排气门积铅阈值测定[J].内燃机学报,2021,(04):334. Meng Xianzhao,Feng Yanpeng.Determination of the Threshold of Exhaust Valve Lead Depositat an Aero Piston Engine[J].,2021,(03):334.