查询词典 square number

He remembers from his school days that the area of a circle is proportional to the square of its radius, and expects that in the case of a uniform distribution, the number of stations counted should increase like the sequence of number 1, 4, 9, 16, and so on.

他记得他学生年代的时候，一个圆形区域的面积和它的半径的平方是成比例的，所以他认为在均匀分布的情况下，汽油站的数目应该以1，4，9，16等等这种数列增加。

Hsu said that from 1996 onwards, the number of China's urban and rural housing have exceeded the annual one billion square meters, equivalent to about 10 million units of housing, housing has become the world's largest number of countries.

杨慎表示，从96年起，中国城乡每年建房的数量均超过了十亿平方米，折合住房约1000万套，已成为世界上建房数量最多的国家。

In 2000, F. LUCA proved that Fermat number are anti-sociable numbers, and in 2005, M. H. LE proved all powers of 2 are anti-sociable numbers. We have used the method of M. H. LE to obtain some new results of the anti-sociable numbers. For every integer n containing prime divisors that are 1 mod 4, let p mod 4 be an arbitrary prime divisor of n. There is at least one anti-sociable number in n^2, p^2n^2, p^4n^2, and p^6n^2. Therefore we can prove that anti-sociable numbers have positive density in perfect square numbers. We also give a method to find the exact anti-sociable numbers.

LUCA证明了Fermat数都是孤立数；2005年，乐茂华教授证明了2的方幂都是孤立数，用乐茂华教授的方法给出孤立数的一些新的结果：对于任意含有4w+1型素因子的正整数n，设p为n的任意一个4w+1型素因子，则在n^2，p^2n^2，p^4n^2，p^6n^2里至少有一个是孤立数，因此可以证明孤立数在完全平方数里有正密度，另外也给出求解确定孤立数的方法。

Imaginary number is any number of the form a + bi where a and b are real numbers, i is the square root of -1, and b is not zero.

虚数是形式为a+bi的任何数，其中a和b是实数，i是-1的平方根，且b不为0。

Firstly, we give a necessary and sufficient condition for a nonnegative square matrix to be decomposed into a product of a finite number of irreducible nonnegative matrices in chapter 1. We prove it by using Frobenius normal form in combinational matrix theory and associated directed graph in graph theory. In addition, we can limit the number of factors to three, and construct every factor.

首先，在第一章中，我们给出了一个非负矩阵可以分解成有限多个不可约非负阵的乘积的充要条件，证明过程利用了组合矩阵论中的Frobenius标准型和图论中的伴随有向图，并且将乘积中的因子个数限制到三个，具体地构造出了分解式中的每个不可约非负阵。

Calculate way 1: Inside it the parameters number have already known, the unknown X of the square equations , can pass to push the estimate of with following calculate way: Among them α=0.95 ～ 0.99 for forgetting the factor, mean the oushifan number, block diag to mean to divide an opposite angles matrix .

算法1：当中参数已知时，方程的未知数X，可用如下算法递推估计：其中α=0.95～0.99为遗忘因子，表示欧氏范数，block diag 表示分块对角阵。

The modulus of a complex number, equal to the square root of the sum of the squares of the real and imaginary parts of the number.

复数的模：一复数的模，等于该数实部部分与虚部部分平方和的平方根

F = The square root of the number of guild neighborhoods rounded to the nearest whole number, if necessary

F = "协会社区"里的社区数目的平方根（如果需要的话，四舍五入到最近的整数位）。

Of the importance of the Square of 8 and 9 grid relationship, Schwaller says, These two lengths, 8 and 9, are related to musical harmony. This is the tone in music and also the ratio between the diameter of a disk and the side of a square of the same surface area. The sum of 8 and 9 is 17, the famous number of Jabir [the famous Arabic alchemist of the 8th century C.E.].

对8方图和9方图的重要关系，古埃及考古学家，金字塔研究专家史沃乐先生说：这两个长度，8和9，和音律和谐规律是相关联的，它们是音乐中的调和与增强，也是一个圆的直径和等面积直角方形的边长的比率。8和9的和等于17，它是一个著名的阿拉伯术士在公元8世纪所使用的一个著名的数字。

Coincidentally, agriculture branch kilometer in the East China Sea Garden, but also to the recent "concessions" in the form of lower prices, each unit prices as high as 10 million, while the King Tin Tin Ming Yuan kilometer is "flatly price" form, regardless of floor, regardless of a unified to 5,888 yuan per square metre price of external sale shortly gathered a lot of interest, as Meilin kilometer of the new century have driven Court last week on the occasion of the occupation on sale now at concessionary price of 4,480 yuan, and a large number of supporters access; Lo Wu District in the north and Porto Novo Tsui Chuk Garden in the land - the realization of the large residential area planning, development changed the landscape of the Lo Wu deficiency, owners in facilitating the full enjoyment of life at the same time bring the entire landscape area, especially the 4,600 yuan per square metre prices, many holding "Lo Wu complex" than those who moved, have set up projects in 70% of the sales of short-term rates

无独有偶，位于农科片区的东海花园，近期也以&优惠&的形式降低房价，每个单位降幅高达10多万元，而景田片区的天健名苑则以&一口价&的形式，不分楼层，不分朝向，统一以每平方米5888元的价格对外发售，短期内聚集了大量人气，同样，梅林片区的新世纪荔园阁也于上周入伙之际以特惠价4480元发售现楼，获得大批拥趸；而位于罗湖区翠竹北的新港鸿花园则在寸土寸金之地实现了小区的大型豪宅规划，一改罗湖楼盘景观不足的缺憾，使业主在便利生活的同时充分享受小区景观带来的愉悦，尤其是每平方米4600元的优惠价格，令不少难舍&罗湖情结&的人士心动不已，纷纷落订，项目短期内突破70％的销售率

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。