正文 第14章 一个谎，要用百个谎圆(第1页/共3页)
“还有……”
乔巧犹豫一下，看着聚精会神专注听她讲解的余家父子，把所知道、一开始并没有打算讲出来的东西也一并说了。
“轮椅或者车辆，爬坡不是困难吗？爬楼梯更是不可能。”m.
“但我们可以把轮子做成三角轮。”
换一张纸，先画拉杆，再画三角轮。三角轮呈三角形，由三个小轮子组成。
“三角轮能够爬楼梯的原理在于，它相当于一种可移动的齿轮。”
“上面的轮子带动下面的轮子，通过连续不断旋转，移动位置。”
乔巧说到这里停住，吐了口气，一杯温热的茶水立即递到她手边。
抬眼一扫，是余永。她也不介意，接在手中喝了一口。
捧着杯子，见余家父子越来越兴奋激动的表情，忍不住泼了一瓢冷水：“当然，没有动力，这种轮子不可能安在轮椅上。”
“没人有那么大的力气，坐着轮椅去爬楼，除非背后有人推。”
老余叔一窒，抓抓胡子：“这倒也是。”
轮椅本就是为方便残疾人的，做得不方便，那还叫轮椅？
“不过……爹，我们可以把这个三角轮，安装在别的车子上啊！”
余永不愧是余家最有头脑的那个，难掩欢喜地插嘴：“小一点的，运粮搬东西什么的，都很方便！”
那不就是后世家家户户必备的买菜小车吗？
“嗯，做小一点，女人孩子，都可以拉着它去买菜。”
想法被理解认可，余永很是开心，回头瞧瞧乔巧，眼睛里尽是笑意。
“乔四妹子真是太聪明了！这么好的法子，是怎么想出来的啊？”
乔老太继续梦幻。乔满囤继续傻笑。纪兰兰脸色，已经不能用锅底灰来形容了。
老余叔和老外两个儿子也极其赞同欣赏地看着乔巧。
一语点醒梦中人。
哪怕乔巧不能手把手教他们做，但有这么清楚的设计图在，以他们几代人传承的手艺，迟早能研究出来。
他们固化的思维，只缺了一个指点迷津的人。
“余叔，我要的这种轮椅，你们能做出来吗？”
乔巧重申来意。
辛苦说这半天，她真不是来讲课的
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