An odometer is a device in a vehicle that measures the total distance the vehicle has traveled, typically in miles or kilometers. It works by using mechanical or electronic sensors connected to the vehicle's wheels to track the number of rotations. Each rotation represents a set distance, and the odometer keeps a running total. The reading is usually displayed on the dashboard and provides important information for maintenance, like when to change the oil or perform other service tasks. It is also used when buying or selling a vehicle to estimate its age and condition.

英語での「odometer」の定義と意味

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