汽车英语

unit 1 general introduction to the structure of motor vehicle
unit 2 engine construction and operation principle
unit 4 engine cooling and lubrication system
unit 5 engine ignition system and starting system
unit 6 automobile emission control
unit 7 introduction to key sensors
unit 8 anti-lock brake system
unit 9 wheel computer—aligne
unit 10 car wash
unit 11 automotive checking and repairing
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