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    Jap Factory 25 自行車的生產流程

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    Jap Factory 25 自行車的生產流程

    發表  sixcube 于 周日 10月 22, 2017 7:05 pm


    自行車,或稱腳踏車,單車,自動車,鐵馬,是一種以人力踩踏腳踏板驅動的小型陸上車輛。自行車通常是雙輪的,但也有三輪的(主要用於貨運,相對少見)。在台灣和中國大陸,通常稱為“自行車”,“鐵馬”,台灣也稱“孔明車”,“腳踏車”;江浙,上海等

    地亦有「腳踏車」一稱;在香港,澳門,廣東,廣西, “中國南方地區則更常稱為為”單車“;在新加坡,馬來西亞,廣東潮汕地區則稱為”腳車“,江西贛語更稱之為”線車(甩)“,”鋼絲車“ “腳踏車嘚”。

    一般人日常騎車(按步行出力)的速度約15〜25公里每小時(9.3〜15.5英里每小時),經過訓練的人騎行專用車可以達到45公里每小時(28英里每小時)的速度速度增加空氣阻力);騎車能源效率很高,消耗能量和二氧化碳,平均每公里不到汽車的十分之一。

    A bicycle, often called a bike or cycle, is a human-powered, pedal-driven, single-track vehicle, having two wheels attached to a frame, one behind the other. A bicycle rider is called a cyclist, or bicyclist.

    Bicycles were introduced in the 19th century in Europe and as of 2003, more than 1 billion have been produced worldwide, twice as many as the number of automobiles that have been produced. They are the principal means of 

    transportation in many regions. They also provide a popular form of recreation, and have been adapted for use as children's toys, general fitness, military and police applications, courier services, and bicycle racing.

    The basic shape and configuration of a typical upright or "safety bicycle", has changed little since the first chain-driven model was developed around 1885. But many details have been improved, especially since the advent of modern 

    materials and computer-aided design. These have allowed for a proliferation of specialized designs for many types of cycling.

      現在的時間是 周四 12月 14, 2017 12:04 pm