bicycle
Bicycles, or bicycles, bicycles, free cars, iron horses, is a kind of manpower pedal pedal driven small land vehicles. Bicycles are usually two rounds (there are three rounds, but mainly for freight, relatively rare). In Taiwan and mainland China, often referred to as "bicycles", "iron horse", Taiwan also known as "Kong Ming car", "bicycle"; Jiangsu, Zhejiang, Shanghai and other places also "bicycle" , Hunan and other southern China is more often referred to as "cycling"; in Singapore, Malaysia, China Chaoshan area is called "foot car", Jiangxi Gan dialect called "line car", "wire car "," Bikes ". Most people routinely ride the speed of about 15-25 km per hour (by walking effort), trained people riding a special car can reach 45 km per hour speed (through the low profile of the use of air flow line, when the speed increases air resistance by The same proportion of square increase); cycling energy efficiency is high, energy consumption and carbon dioxide, the average per kilometer less than 1/10 of the car. ...