介绍自行车英语作文,要求:使用目的,外形,构造,使用中的常见问题,注意事项,如何使用。字数200左右

如果答案写的好的话,可追加再20分,14号之前有效。

Folding bike car. Its characteristic is the application ShouZha make up the axis upward folded into super small volume of portable type axis of the overall structure of the folding bikes, folded into the bag (bags) in a folding bike integration structure. In the production would need to use lock hinge maximizes frame and leading, car seats connected; Lock hinge spring loaded, cable (line), the gate to operate; Lift ShouZha can control lock hinge, ensure safety and convenient.

The new utility model conceive outline novel, the structure and reasonable, can easily folded and carry on, and easy to use and comfortable, production technology mature, extremely easy popularization, so far very optimistic about the market prospect.

[editor this segment] bicycle-parts

Bicycle-parts (1) body parts: including frame, front fork, handlebar, saddles and fork and pieces as well as the main body of the bicycle, is.

(2) the transmission part: including pedal, crank, wheel, chain, axial and the flywheel, such as by human pedaled pedal, through the rotation of the wheels drive train parts and drove and drove and drove.

(3) : that is part of the action, including the front wheels and rear axle parts, the spokes, rim (circle), tires, etc.

(4) the safety device: including brakes (a brake), light, bell, reflex, devices, etc.

According to the needs, still can add some accessories, such as stents, racks, insurance fork, the fender, a bicycle, etc. In addition, equipped with gears of sports cars, competition agencies car, mountain bikes are equipped with variable speed controller and the chain before and a

折叠车自行车。其特征是该车应用升降手闸使整车轴心向上提升折叠成超小体积的轴心型便携折叠车的整体结构,整车折叠后放进布袋(箱包)中成为折叠自行车的一体化结构。在制作中则需要用锁紧合页将车架及龙头、车座相连接;锁紧合页装有弹簧、钢索(线闸)等,方便操作;升降手闸可控制锁紧合页,确保安全和方便。
  本实用新型构思新颖,结构简洁合理,能轻松折叠和展开,携带和使用方便舒适,生产工艺成熟,极易推广普及、到目前为止市场前景非常的看好。
[编辑本段]自行车 - 部分组成
  自行车 - 部分组成①车体部分:包括车架、前叉、车把、鞍座和前叉合件等,是自行车的主体。
  ②传动部分:包括脚蹬、曲柄、链轮、链条、中轴和飞轮等,由人力踩动脚蹬,通过以上传动件带动车轮旋转,驱车前行。
  ③行动部分:即前后车轮、包括前后轴部件、辐条、轮辋(车圈)、轮胎等。
  ④安全装置:包括制动器(车闸)、车灯、车铃、反射装置等。
  根据需要,还可增加一些附件,如支架、衣架、保险叉、挡泥板、气筒等。另外,装有变速机构的运动车、竞赛车、山地车等还装有变速控制器和前后拨链器等。
  部件详细解说
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第1个回答  2011-06-11
I have a bike , it looks very beautiful , I ride it to school , it's a moder bike ,Simetimes do some exercise to take it .I like it's very much .
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