中国作为自行车王国,对自行车情有独钟.然而我们却时常会遇到自行车缺气现象,这时骑自行车总会有一种很费力的感觉,为什么缺气后骑起来会费力呢?1错误认识及相应的分析1.1轮胎与地面阻力变大的解释及分析缺气的自行车为何会费力,我们平时更多的解释是:缺 China, as a bicycle kingdom, enjoys a soft spot for bicycles, but we often encounter the phenomenon of bicycle lacking gas. Cycling at this time always has a very laborious feeling. Why is it so hard to ride out of breath? And the corresponding analysis 1.1 tire and the resistance of the ground becomes larger explanation and analysis of the lack of bikes why the effort, we usually more explanation is: the lack of