查询词典 symmetry

The calculation of dipole moment by MEEM The dipole moment is a physical quantity, which can indicate the charge distribution of the molecule. The value of dipole moment can be conferred from the situation of the molecular symmetry, and vice versa.

偶极矩是表示分子中电荷分布情况的物理量，可以由分子的对称性推测分子有无偶极矩，也可由分子有无偶极矩及偶极矩的大小了解分子结构的信息。

Wave equations, which were derivate from the stiffness Matrix of anisotropy monocline symmetry system, may meet different azimuth modeling of 2-D finite difference.

从各向异性单斜对称系统的刚性矩阵推导出的波动方程，可以满足EDA介质模型不同方位角入射的二维差分模拟要求。

The adjustable amplitude range, symmetry and low ringing of the monocycle pulse are important to judge the performance of the pulse generator. Furthermore, the pulse generator should avoid the process variation and be suitable for different requirements.

目前脉波产生器的研究中，以脉波的高度可调性、对称性和低涟波为最重要，再者由於晶片中的制程变异或是需应用於不同的情况，因此目前的脉波产生器研究皆以此目标迈进。

The results show that the ground state structures of CB(superscript -)(n=1~6) clusters are linear as C clusters due to their isoelectrons. For CB (n=1~6) clusters, the ground state structure of C2B is asymmetric triangle and C6B is C(subscript 2v) symmetry planar monocycle, while the other clusters are linear.

结果表明CB(n=1~6)团簇的基态构型均为线形，这与等电子的C簇合物的结构是一致的；CB(n=1~6)团簇的基态构型中，除C2B为不对称的三角形，C6B为具有C(下标 2v)对称性的环状结构外，其余均为线形结构。

In this thesis, we propose two pulse generators whose pulse amplitude is adjustable. These pulse generators use the second-order transient circuit at over-damping mode to generate the adjustable monocycle pulse with good symmetry and low ringing in the simulation and measurement.

本论文提出两个脉波高度可调的脉波产生器，主要观念在於利用RLC二阶暂态来产生脉波，并利用过阻尼响应来降低脉波尾端的涟波，从模拟与量测中可验证此特性。

The macroscopic rheological parameters and microstructure parameters were closely related, it is helpful to explain the essence of multiple rheological properties through the analysis of which the wax evolution process and microstructure of the crude oil which is waxy and high viscosity; the yield time of gelled waxy crude oil monotone increases along with the decreasing of rate of shear (the time of stress effect prolonged), there was power function relationship between them, it can be expressed with ; when adding diesel oil to Sudan crude oil, dilute proportion bigger the eccentricity degree of paraffin particles were bigger too, that was to say the symmetry of wax crystal was better, the wax crystal form fabric more hardly when the intermolecular interaction was smaller; in the light of macroscopica, the fall extent of the abnormity temperature, solidifying point and viscosity could be larger along with the accretion of dilute proportion, as a result, it's rheological properties could be improved.

SD原油析蜡点为94℃，析蜡高峰为50～30℃，异常点为40℃；其蜡晶颗粒细小、对称性差，所以具有较大的比表面能，容易形成联生、联锁结构；损耗角曲线与储能模量曲线或损耗模量曲线的交点所对应的温度与原油凝点或倾点温度非常接近，大约在39℃左右；也就是说，含蜡原油粘弹特性曲线的交点可以表征其流动性；原油宏观流变参数与微观结构参数密切相关，原油析蜡过程及蜡晶微观结构分析有助于诠释易凝高粘原油多重流变特性的本质；胶凝含蜡原油的屈服时间随剪切速率的降低而单调增加，二者显然存在幂函数关系，可用关系式描述；当SD原油加柴油稀释处理时，稀释比越高，蜡晶颗粒的偏心度也越大，亦即蜡晶对称性越好，分子间作用力越小，蜡晶颗粒越不易形成结构，宏观表现为异常点、凝点及表观粘度等流变参数下降的幅度越大，流动性越好。

"Finding Moonshine" is full of insight into the nature of symmetry and the people who study it.

寻找月光》充满了对对称的本质和其研究者的真知灼见。

Bellamy cites guitar influences such as Jimi Hendrix and Tom Morello (of Audioslave and Rage Against the Machine), the latter evident in the more riff-based songs on Origin of Symmetry, and in Bellamy's extensive use of pitch-shifting effects in his solos.

1999年和

Results:Six months after the childhood miniature pig transverse fracture of mandibular condyle,MRI medium-sized signal in both two sides in symmetry,no muscle necrosis under light microscope,and decrease of mitochondria,more glycogen granulation,clear myotome were found and no abnormal mitochondria and fatty degeneration under transmission electron microscope were shown.

光镜观察咀嚼肌和翼外肌横截面切片在不同时间均未显示任何破坏现象，透射电镜下髁突横断骨折后6个月组与正常对照组比较无明显变化，只显示线粒体数目减少、糖原颗粒较多、肌节各带清晰，无异常形态线粒体及脂肪变性。

In this research we analyze the role of symmetry, neoclassical canons, and golden ratio in the determination of attractiveness of a face.

这项研究提出了评价面容吸引力的模型，表明了几何学在面容吸引力评价上的重要作用。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。