Representation of four-dimensional vectors.
表示四维向量。
Zinovyev and Gorban then plot this data in four-dimensional space.
然后兹诺瓦·耶夫与戈班在四维空间中对这些数据进行绘制。
Similarly, other faults entropy points in four-dimensional space can be gotten.
同理，对其它几种故障也可以得到各自在四维空间中的故障熵点。
This shows that the four-dimensional assimilation have some relation with predictability.
这表明四维同化和可预报期限是联系在一起的。
This paper does the experiments of Doppler radar's Four-dimensional Variational Assimilation in MM5 model.
本文的工作就是多普勒雷达资料在MM 5模式中的四维变分同化试验。
On the next rung up the ladder of difficult mathematics comes doing the same thing in four-dimensional space.
在这个困难的数学阶梯上取得下一个进展之前，得先在四维空间做同样的事情。
Objective: To assess the value of four-dimensional ultrasound in the diagnosis of surface deformity in fetus.
目的：探讨实时三维超声在诊断胎儿体表结构畸形中的临床应用价值。
I was trying to visualize how to construct a tesseract around a four-dimensional sphere when I drifted away to sleep.
当我渐渐睡着时，我还在想象在一个四维球体周围怎样构造一个超正方体。
We reported an initial study of 8 normal subjects and 26 subjects with VSD using four-dimensional echocardiography (FDE) The shape.
本文报道应用四维超声心动图对8例正常室间隔与26例室间隔缺损进行初步研究的结果。
But you can conceptualize a four-dimensional data structure by thinking of the fourth dimension as multiple three-dimensional cubes.
但是您可以采用将一个四维数据结构看作是多个三维立方体的方式来理解四维数据结构。
All the cultural classics in the history of mankind are the historical relics unfolding in the far-stretching four-dimensional space.
人类历史上所有的文化经典都是在绵延无尽的四维时空中展开的历史流传物。
Demonstrated Homomorphic Characteristic Between SO (4, 2) and SU (2, 2) by Stereographically Projecting of Four-dimensional Coordinates.
借助于四维坐标的球极平面投影验证SO(4,2)与SU(2,2)间的同态特性。
A linear state feedback controller is designed for controlling a four-dimensional chaotic system by the inverse optimal controlling approach.
采用逆最优控制方法为一种四维混沌系统设计了一个线性状态反馈控制器。
The forced vibration of pendulum is described by four-dimensional phase space and the fourth order autonomous ordinary differential equation.
本文用四维相空间和四阶自洽常微分方程描写了单摆的受迫振动。
To create a ranking, the important question is whether there is a linear function that reduces this four-dimensional dataset to a one-dimensional set.
对于编制排名而言，最重要的问题是，是否存在一个线性函数，能够对这个四维的数据集进行降维，得到一个一维的数据集（生活质量指数）。
At the petabyte scale, information is not a matter of simple three - and four-dimensional taxonomy and order but of dimensionally agnostic statistics.
在PB级别，信息不是简单三维、四维的分类和顺序，而是有维度不可知的统计数据。
Your baby's four-dimensional dynamic video we will you save a month, and row of medical information will furnish photographs kept for over 3 years.
您宝宝的四维动态录像我们会为您保存一个月，而排畸的医学照片资料会保存3年。
The dichotomy has led to decades of research in mathematics and physics, including the discovery of "fake" four-dimensional Spaces by Simon Donaldson in 1984.
这一区别引领了数十年的数学和物理学领域的研究，包括1984年由西蒙·唐纳森发现的伪四维空间。
Four-dimensional point groups are deduced by generating normal three-dimensional point groups with certain restrictions which are unique for modulated structures.
在某些限制下，推广三维点群的概念，导出四维空间点群。
Furthermore, the conventional observations are done in the MM5 model system, and a four-dimensional variational data assimilation test is made based on observed data.
最后对MM5伴随模式系统进行了梯度检验，并利用实际资料进行四维变分资料同化试验。
A four-dimensional IA model was studied in this paper, which includes IA object dimension, IA capability dimension, IA countermeasure dimension and IA time dimension.
文章研究了一类四维信息保障(IA)模型，包括IA目标维、IA能力维、IA措施维和IA时间维。
The four-dimensional space-time of special relativity is augmented with a fifth dimension to take into account the gauge transformation of the electromagnetic potentials.
本文从电磁势的规范变换出发引入第五维空间和一个新场量。
For those keen to know more: the computations involve "envisioning space and time as part of a four-dimensional crystal lattice, with discrete points spaced along columns and rows.
一点额外的话给那些想要知道更多的人：这个计算包括 “想象一下，时间和空间将成为水晶方格似的四维空间的一部分，不连续的点在空间纵横其间。”
Its description of time travel in a four-dimensional universe presaged the cottage industry in theoretical space-time machines that has sprung up among physicists in recent decades.
近几十年中物理学家们争先恐后进行理论上时光机器的研究，就证明《时间机器》关于四维宇宙中时光旅行的描写极具预见性。
Just as loop quantum gravity breaks up space into tiny "building blocks", CDT assumes that space-time is split into tiny building blocks - this time, four-dimensional chunks called pentachorons.
只不过圈量子引力理论把空间分为微小的“构建模块”，而CDT假设空间-时间不是分成微小的构建模块—而是叫做pentachorons的四维的小块。
Just as loop quantum gravity breaks up space into tiny "building blocks", CDT assumes that space-time is split into tiny building blocks - this time, four-dimensional chunks called pentachorons.
只不过圈量子引力理论把空间分为微小的“构建模块”，而CDT假设空间-时间不是分成微小的构建模块—而是叫做pentachorons的四维的小块。
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