查询词典 mathematical expectation

Leibniz also freely invoked mathematical entities he called infinitesimals, manipulating them in ways suggesting that they had paradoxical algebraic properties.

莱布尼茨自由运用他称之为&无穷小&的数学单位，并以各种他们相悖的代数性质进行运算。乔治？

A mathematical model for the anode of a direct methanol fuel cell considering the mass transport in the whole anode compartment and the proton exchange membrane, together with the kinetic and ohmic resistance effects through the catalyst layer is developed. The influences of key parameters on methanol crossover and anode performance are investigated.

对于DMFC的阳极，本文描述了甲醇和水在阳极及质子交换膜中的传递过程、反应动力学和欧姆阻抗效应，建立阳极和PEM的数学模型，并探讨对甲醇扩散和阳极性能影响的主要因素。

In this paper, the author queried a few conclusions in [1] , and elaborated different views on several problems, such as relations between non-Euclidean geometry and real space, relations between mathematical logic and thinking, the significance of Godel s second incompleteness theorem, and so on.

本文对文〔1〕的几个论断提出一些疑问，并在&非欧几何与现实空间&、&数理逻辑与思维&、&哥德尔不完备性定理的意义&等若干问题上表述了与《数学是什么》一文中不同的观点。

In the case of general relativity Einstein did not himself invent new mathematical tools, but applied ideas on non-Euclidean geometry developed by Riemann, Ricci, Livi-Civita and others.

在广义相对论方面，他并没有发明新的数学工具，只是运用了由黎曼、里奇、勒维-契维塔以及其他一些人发展起来的非欧几里德几何方面的思想。他在数学方面并不突出，比不上牛顿。

The Pythagoreans taught that the soul is a harmony, its essence consisting in those perfect mathematical ratios which are the law of the universe and the music of the heavenly spheres.

Pythagoreans教导的灵魂是和谐，其实质包括那些完美的数学比率这是法律的宇宙和音乐的神圣领域。

The Pythagoreans, having discovered the mathematical laws of musical pitch , inferred that planetary motions produce a "music of the spheres ," and developed a " therapy through music" to bring humanity in harmony with the celestial spheres.

毕达哥拉斯学者们根据行星运行所产生的&球形音乐&中，发现了如音乐般的数学原理，并发展了&音乐治疗&使人类与天上的星球达到和谐。

In a no overlapping generation population with selection, mutation、migration and random drift under consideration, two mathematical models presented in this paper might describe change of frequencies of multiple alleles at a locus and population mean of metrical characters resp.

在假定无世代重叠，群体内存在选择、突变、迁移，且考虑漂变效应的情况下，本文所构建的两个数学模型可分别用来描述一个座位上多个主基因频率或数量性状群体均数的动态变化。

However, beyond all his expectations, letterheads, together there is only math problems - together with a very complex mathematical problems.

可是，出乎他所有的意料，信纸上只有一道数学题——一道很复杂的数学题。

Secondly, the massive theory is reasoned and manipulators mathematical model is established.

其次，经过大量的理论推导，建立了机械手的数学模型。

A mathematical model of computing ship motion in crash stopping is proposed and a new method for dealing with hydrodynamic forces and moments of propeller based on the principle of ship propulsion and manoeuvrability is put forward in this paper.

基於船舶推进和船舶操纵性理论，建议了一个计算紧急停船运动的数学模型，并对其中的螺旋桨水动力和力矩提出了一种新的处理方法。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。