21. Study on matching of internal - combustion engine crankshafts and bearings based on network flow programming 22. Application of deflagrated signal s wavelet package analysis to fault diagnosis of internal - combustion engine 23. A device used in internal - combustion engines to produce an explosive mixture of vaporized fuel and air 24. A mixture of a vapor and air , as the explosive gasoline - air mixture burned in an internal - combustion engine 25. For 100 years , nearly every car has been powered by an internal - combustion engine running on gasoline or diesel fuel 26. Now the hydraulic powering steering ( hps ) is still mainly used in the automobile drived by internal - combustion engine 27. It should become smaller , safer , and more economical , and should not be powered by the gasoline internal - combustion engine 28. A self - propelled passenger vehicle that usually has four wheels and an internal - combustion engine , used for land transport 29. Internal - combustion engine professionals , relevant work more than 2 years , familiar with exhaust emission standards , good english30. German engineer and pioneer automobile manufacturer who produced the first high - speed internal - combustion engine ( 1885 )