片语
Combustion expansion stroke燃烧膨胀沖程
combustion stroke detail燃烧沖程
one-cylinder four-stroke cycle combustion engine单缸四沖程内燃机
four-stroke internal combustion engine[动力]
four-stroke internal combustion engines四沖程内燃机
two-stroke internal combustion engine[动力]
two stroke internal combustion engines二沖程内燃机