骑自行车

And tell you the principle concerning bike,we can learn how and when it was invented and its basic structure as well from the passage.we got the history of bike and when it become popular,these are really interesting.although we usually ride bike around,we're not familiar with the history and the basic structure of it.after learning the unit,it give me a fresh knowledge of bike,and also tell us commonsensibles like how to forbit downdipping while riding in muddinesses and so on.it's a great help for us.because why don't learn more to keep our bikes more safe?

而且从文章告诉我们自行车是怎么样发明的？什么时候发明的？它的构造又是怎么样的？让我们了解了自行车的历史。以及它是什么时候开始流行的。这些都相当有意思。虽然平时我们经常骑脚踏车，可对他的历史来源和它的简单构造也不是很清楚，但学了这单元之后，使我对脚踏车又有了一个新的认识。而且它还告诉我们，当我们骑在泥泞的地面时，怎么样避免下沉？等等一些常识性的问题，可以让我们在现实生活中运用到，这是起着很大作用的，因为多点了解就能让自己的行车得到更好的安全保证。何乐而不为呢？

Electric bicycle and electric motorcycle is different, the electric bike is riding the line device, the electrical power good smaller, when the Su-not more than 15 kmh, the electric motor power the larger motorcycle 500W or greater, about 50 kmh per hour, there is no cycling device can be the road for electric bikes, electric motorcycles can not be listed on the road, and the technology was not, a low safety factor, it is recommended not to buy Electric Motorcycle.

电动自行车和电动摩托车是有区别的，电动自行车是有踏行装置的，电机功率好较小，时素不能超过15公里每小时，电动摩托车电机功率较大500W或更大，时速50公里每小时左右，没有骑行装置，电动自行车可以上路，电动摩托车现在还不能挂牌上路，而且技术不成熟，安全系数低，建议不要买电动摩托车。

Every facet of the sport is covered - road racing, time trialling, mountain biking—— and there are detailed sections on equipment, health, nutrition and tactics, as well as advice on how to race and train for each of the different areas of cycling.

本书几乎涵盖了所以自行车运动的层面——马路竞赛、时间选拔赛、山顶自行车赛等——书中还详细分了几个主题，包括自行车组件、自行车与健康、营养，自行车竞赛战术兵法、以及如何在不同地面的条件下骑行自行车的建议和方案。

In defect of such an controlling instrument and method in our country ,therefore, a testing bicycle has been developed in this experimentation according to the demands of current bicycle training .5 sporters of bicycle and 6 pastime bicyclers were tested and their techniques were analysed .especially ,the saddle orientation of racing bicycle were diagnosed solely for the athletes participating in the this test.This study found some disciplinarians ,Provided some indexes on how to analyze shortcoming and merit about pedalling techniques and some beneficial suggestions for training,built up a set of software integrated with collecting data,processing, storing and rewinding.

为此，本研究根据当前自行车训练的要求研制出一辆测试车，通过改变坐角、坐高获得九种组合位置，选择了5名自行车运动员和6名一般骑车人作研究对象进行技术分析，并对自行车运动员的&赛车定位&单独进行&诊断&，从中发现了某些技术规律，提出了一些可供评价踏蹬技术好坏的指标及对自行车运动训练有益的建议，开发出一套集数据采集、处理、存贮和回放一体化的踏蹬技术诊断系统软件，基本上为实现&自行车适合于人&的理念迈出了重要一步，为今后进一步探索骑行技术和及时反馈、监控训练过程打下了基础。

Road racing and mountain biking relate easily to the average rider's view of cycling. Track cycling does not. In track cycling, the riders go nowhere, just around and around an oval track banked at 42 degrees. The track's name - the velodrome - sounds space-age, and the helmets, suits and bikes bearing no resemblance to a common two-wheeler more closely resemble something out of Star Wars.

公路自行车项目和山地自行车项目似乎更符合普通人对自行车项目的认识，但对场地自行车却不同，场地自行车运动员只是在呈42度角倾斜的场地内一圈接一圈地骑行，赛车场、运动员的头盔、比赛服和自行车本身都仿佛来自《星球大战》，和普通自行车项目相距较远。

Michael Schumacher is unable to drive a racing car or bike at present as he is still recovering from his crash at Spain's Cartagena circuit in February.

迈克尔舒马赫是无法驾驶赛车，或骑自行车，目前他仍然是恢复他的崩溃在西班牙卡塔赫纳电路。

She had cycled to the station at Horam in East Sussex as usual earlier in the day to catch a train, but never came back.

她像往常一样早早骑自行车到东苏塞克斯的霍拉姆车站搭火车去上班，却一去不归。

This is the picturesque Provence of Pagnol, Raimu, and Fernandel.

要体会大自然的奇妙，最佳方法当然是骑自行车欣赏沿途风景。

He was crazy to fly across the Yellow River by bicycle.

他要骑自行车飞越黄河简直疯了。2。

May I suggest a sunset bike ride from the top of Haleakala to the sugar fields near the ocean.

我建议夕阳骑自行车从上方的哈雷阿卡拉领域的糖附近的大海。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失