查询词典 triangular numbers

Throughout his life Euler was much absorbed by problems dealing with the theory of numbers , which treats of the properties and relationships of integers, or whole numbers 0,±1,±2, etc.

没有一个人能像他那样多产和那样高超地掌握数学的技巧，在数学的许多分支中都有以他命名的公式、常数等等。

Under the condition of the following factors concerning the optimization models:the investment cost, operating cost, unfair cost, payment evade cost, drivers' extra cost and environmental pollution cost, this paper raises the optimized models of multi-modes payment of toll collection system and its algorithm is proposed by SAGA hybrid optimization strategy, which can simultaneously optimize the following results: the optimum locations of toll stations, numbers of toll stations, the numbers of different tolling modes' tollgates of every toll station, ETC users' discount rate, and can estimate the installation rate of TAG of every toll station, the actual traffic flow capacity of different tollgate, can obtain the best toll collection system under the different simulated decision conditions.

本文充分考虑了驾驶员缴费技术选择与缴费车道选择的特性，提出了驾驶员缴费方式随机选择模型；在考虑了收费系统的投资成本、营运成本、不公平成本、漏收成本、驾驶员的额外成本和环境污染成本等因素的基础上，提出了多收费方式收费系统的优化模型，提出采用模拟退火遗传算法进行收费系统寻优的算法，可同时优化出一个收费系统的收费站位置与数量、不同收费站不同收费方式的收费车道数和ETC用户的折扣率等参数，可估算不同收费站TAG的安装率、不同收费车道实际使用量，可模拟不同决策情境下的最佳系统资源配置方案。

The total cell numbers and differential cell numbers in BALF were counted.

哮喘组BALF中PMN和嗜酸性粒细胞计数显著高于对照组(P.01)。

The tractarian state of electron is discontiguous, so the finding result of four quantum numbers is discontiguous, the logical combination of four quantum numbers are corresponding to the suitable energy state of electron.

既然电子的运动状态是不连续的，因此四个量子数的取值也是不连续的，四个量子数的合理的组合对应着电子的一种能量状态：。我翻译如下，请高手指正，急用，请高手快点。

Consideration of the natural numbers also leads to the transfinite numbers , which formalize the concept of counting to infinity .

考虑自然数也引起了超越数，超越数形式化计数到无限的概念。

A register pair is needed because a multiplication of two 32 bit numbers results in a 64 bit result, just like 9*9=81 - two one digit numbers result in a two digit result.

寄存器对必须的因为乘法是两个32位整数结果存在一个64位结果中。例如9*9=81 两个一位数结果在一个两位结果中。

We might call our numbers two-handed numbers, because they grew out of counting things on two hands.

我们可以称数字为"两手数字"，因为这些数字是在两只手上数东西产生的。

The numbers of unenrolled school-age children dropped by 33m in 2007 compared with 1999. About 15m of that fall came in India alone (though UNESCO says statistics may understate the problem by up to 30%). In countries like Liberia and Nigeria the numbers have hardly budged since 1999. Of the 72m still outside school, 45% are in sub-Saharan Africa.

未注册入学的适龄儿童人数与1999年相比，在2007年下降了3300万，约有1500万是在印度（尽管UNESCO 声称保守的统计数据低估了约30%）在一些国家，比如利比里亚，尼日利亚从1999年起，失学儿童的数量几乎没有发生变化。7200万的失学儿童中有45%在撒哈拉以南的非洲。

Keep in mind, these numbers represent only medical costs; when you look at the total economic burden the unhealthful behaviors impose on society, the numbers are much, much larger.

记住，这些数字仅代表医疗费用，从总体看时，给社会带来的危害是更大的。

The factors favoring unionization drives seem to have been either the presence of large numbers of workers, as in New York City, to make it worth the effort, or the concentration of small numbers in one or two locations, such as a hospital, to make it relatively easy.

影响工会化趋势的因素，要么是大量工人的存在，如在纽约城，使之值得努力，要么是为了集中在一个或者两个地方如一家医院的少数人，使之相对容易。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。