4125、4115系列柴油机节能措施中涡流室的改进与东方红ZS4S15型4°喷油嘴的应用4125、4115繫列柴油機節能措施中渦流室的改進與東方紅ZS4S15型4°噴油嘴的應用 4125、4115계렬시유궤절능조시중와류실적개진여동방홍ZS4S15형4°분유취적응용 The improvement of swirl chamber of 4125 and 4115 series diesel engine and application of Dongfanghong ZS4S15 type four degree oil nozzle
