矩
- 与 矩 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Fourthly, it is also expounded the experimental priniciples and methods of testing the flow field in the rotating wheel of torque converter with two-dimensional Laser Dopple Anemometry and made the measurement of the flow field of YB355 impeller and turbine in this paper.
文中还阐述了用二维激光多普勒测速仪,测量变矩器旋转叶轮内部流场的试验原理和试验方法,并对YB355变矩器泵轮和涡轮内部流场进行了测试。
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Feature of principal lines spatial distribution: detect the principal lines through edge detecting technology, and then divide the image of palmprint into blocks with same dimension, compute the mean and variance as feature; Feature of palmprint direction: divide the image into sub-images; compute the max angle of projection and coordinate of each sub-image, which stand for the direction and location of the line on the palm; Feature of moment invariants: compute the moment invariants of each sub-image and the whole image as feature.
掌纹主线空间分布特征:利用边缘检测技术检测出掌纹的主线,将图像分割成相同大小互不重叠的子图,提取每一个子图的均值和方差作为特征;掌纹线方向特征:将图像分成不重叠的子图,利用Radon变换求出每一个子图的最大投影角度和坐标,也就是子图内掌纹线的方向和位置,构造特征向量;掌纹不变矩特征:提取图像整体和分割后的子图的不变矩作为特征。
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But this treatment introduces two new parameters ku and kd, and the values of the anomalous magnetic moment need further studying.
当把夸克看成有结构的,即夸克存在不恒为一的结构函数,并且反常磁矩不再为零,这样便引入了两个新参数一夸克的反常磁矩,在正常合理的参数下计算结果与实验的符合表明有所改进,不过参数的合适选择看来仍起关键作用。
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The Aharonov-Bohm scattering of relativistic particles with an anomalous magnetic moment is studied. Exact solutions are obtained. The effect of the anomalous magnetic moment on the scattering of polarized particles turns out to be rather unexpected.
五、研究了具有反常磁矩的相对论粒子的 Aharonov-Bohm 散射,求出了精确解,发现反常磁矩对极化散射的影响出人意料。
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Beautiful Ting grows Yu Xie normally, grow 35 ~ 100cm; Raceme grows 25 ~ 40cm, have most flower, 8 bunch give birth to 3 ~ at luxurianting an armpit inside; Bud piece small, bristle shape; Perianth piece quadrature circle or rules round form wrap around needle form, long make an appointment with 3.5mm, purple; Filament is long make an appointment with 1.5mm; Antheral grow 1.5 ~ 2mm; Ovary is close globose, style is long make an appointment with 2mm, post 3 crack.
花葶通常长于叶,长35~100cm;总状花序长25~40cm,具多数花,3~8朵簇生于苞片腋内;苞片小,刚毛状;花被片矩圆形或矩圆状披针形,长约3.5mm,紫色;花丝长约1.5mm;花药长1.5~2mm;子房近球形,花柱长约2mm,柱头三裂。
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Direct torque control is the most excellent control technology for induction-motor at moment. Digital signal processor with high speed arithmetic and logic operation is the base for its digital realization.
直接转矩控制技术是目前最为优良的交流电机控制技术,数字信号处理器的高速运算和实时处理功能为直接转矩控制技术的数字化提供了基础。
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This technique is used for the axisymmetric magneticstatic problems and the result is good. In the second example of the forth chapter, the error of the third–order Asymptotic Boundary Condition is lower than that of the second-order Asympototic Boundary Condition.
第五章针对这一问题,进一步对渐近边界条件进行了推导,分析了一些特殊电荷和电流分布情况下,电位、标量磁位和矢量磁位的多极矩展开式中各极矩项的性质。
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The electronic structure and magnetism of clusters Nin(n=2-6) have been studied by spin-polarized MS-Xα method. The results show that the effect of the cluster symmetry on its atomic magnetic moment and electronic density of states is very notable.
采用MS-Xα方法研究了Nin (n=2—6)原子簇的电子结构和原子磁矩,发现团簇的几何对称性对原子磁矩和电子态密度的分布有重要影响。
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Permanent Magnet Synchronous Motor has the advantages of high magnet density, small torque pulse, big torque-inertia ratio, high efficiency, simple construct and so on. PMSM has been applied to the occasions that requires high precision of control and high reliability far and wide, such as avigation, numerical control machine tool, radar and some military weapons follow systems, robot and so on. In addition, it plays an important part in Ac motors in modern times.
交流永磁同步电机具有气隙磁密高、转矩脉动小、转矩/惯量比大、效率高、结构简单等优点,在要求高控制精度和高可靠性的场合,如航空航天、数控机床、雷达与各种军用武器跟随系统以及机器人等方面获得了广泛的应用,在现代交流电机中也占有举足轻重的地位。
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A method of moment features testing components' states is put forward to solve this problem.First the components' barycentric coordinates and second-order centered moments are calculated.Then the inclined angles are obtained,on the basis of which the inclined components can be rectified.
针对这一问题,提出了一种矩特征检测构件状态的方法,该方法首先计算出图像中构件的质心坐标和二阶中心矩,然后求出构件的倾斜角度,根据倾斜角对处于倾斜状态的构件进行校正。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力