查询词典 unicycle

Applying the De Caen"s inequality of sum of the squares of the degree and Cauchy"s inequality, we obtain a strict lower bound and a strict upper bound of the largest Laplace eigenvalues only in terms of vertex number of a unicycle graph. Applying the Laplace matrix theorem of trees, we obtain an upper bound of the second smallest Laplace eigenvalues of a unicycle. Extremal graph whose second smallest Laplace eigenvalues reach the obtained upper bound is determined. We also obtain an upper bound of the second largest Laplace eigenvalues in terms of vertex number of the largest connected branch of unicycle graph, and obtain a theoretical method to calculate the second largest Laplace eigenvalues of unicycle graph. We obtain an upper bound of any Laplace eigenvalues in terms of vertex number of a unicycle graph. We also obtain the distribution of Laplace eigenvalues in the inter [0,n] in terms of the matching number.

本文得到了以下几个方面的结果： 1、利用图度平方和的De Caen不等式和Cauchy不等式给出单圈图的最大Laplace特征值仅依赖于顶点数的严格的上下界；利用树的Laplace理论给出了单圈图次小Laplace特征值的一个上界，并刻画了达到该上界的极图；利用子图的连通分支的顶点个数给出了单圈图次大Laplace特征值的一个上界，并给出了单圈图次大Laplace特征值一个理论上的一个求法；利用单圈图的阶数给出了其一般Laplace特征值的一个上界；利用单圈图的匹配数给出其Laplace矩阵谱在区间[0，n]上的分布情况。

Beijing "Gold Medal" brand unicycles are special for China unicycle team entering the World Unicycle Championships. The products have been supported for the National Unicycle Championships and got the prizes for many times.

北京金牌独轮车是中国独轮车队参加世界独轮车锦标赛的专用车，曾多次赞助全国独轮车锦标赛，并多次获奖。

In Germany and Switzerland, there is another amazing unicycle sport. It is called unicycle hockey.

德国与瑞士还有另一种让人叹为观止的单轮车运动，称为「单轮曲棍球」。

By go-cart or unicycle, by skateboard or sleigh

驾着马车、乘着雪橇、骑着脚踏车、踩着滑冰板

It seems that this woman doesn't think riding a unicycle is enough of a challenge.

这名女子似乎不觉得骑单轮脚踏车是一项挑战。

It's an electric vehicle that looks like a cross between a motorcycle and a unicycle.

这是一种电动交通工具，看起来像是摩托车和独轮车的结合品。

Balance the Dog on his Unicycle and help him cross all the hurdles.

平衡的狗在他的单圈，并帮助他跨越了所有的障碍。

Although unicycle is for adventurers and will be a challenge for a normal human being to ride still riders admire it for its unique design.

虽然unicycle是冒险家和将是一个挑战，一个正常的人仍然乘客乘坐钦佩它以其独特的设计。

And аlso my unicycle, that is one-wheel bicycle. It's very cool. It's just for the redheads. Especially for those of us who aspire to become clowns.

还有我的独轮脚踏车，它非常酷，那是只为红头发的人准备的，尤其是我们这些立志成为小丑的人。

Rotation' is a city rotating and folding bike concept design which seems to be a combination of unicycle and bicycle.

旋转'是一座旋转和折叠自行车概念设计，似乎是一个结合unicycle和自行车。

Dixie itself is a nickname for the American South.

Dixie 本身是美国南部的别称。

I think John Terry epitomises that and a big reaction is what we will be looking for.

而我认为特里就是这样一个典型，他正是我们期望看到的那个领秀。