Session S35En_4t2t: 4 and 2 stroke engines

4 stroke intake, 4 stroke compression, 4 stroke combustion-expansion, 4 stroke exhaust, 4 stroke cycle clip, 2 stroke compression, 2 stroke combustion, 2 stroke expansion, 2 stroke crankcase compression, 2 stroke intake port closing, 2 stroke exhaust port closing, 2 stroke cycle clip
CRC_ln_12