查询词典 symmetry

For considering the electron-phonon coupling in the problem of impurity absorption band, a set of normal modes of lattice vibration were formed by the linear combination of plane waves in order to present fully the site symmetry of the impurity.

将晶格振动的平面波线性组合得到一组充分反映杂质格位对称性的正则模。

The concept of symmetric cross entropy is presented to compensate the shortcoming of the cross entropy in meeting symmetry, and it is a kind of distance measure proved theoretically. Then, a new evaluation model is founded by using the symmetric cross entropy as an evaluation index.

针对其不满足对称性的不足，提出了对称交互熵的概念，并从理论上证明了对称交互熵是一种距离测度，从而建立了以对称交互熵为指标的评估模型。

Seedlings request with crown, crown-shaped symmetry.

苗木要求带冠，冠形匀称。

Derrick on Tianlun and rope set up the runway, the installation of hoists, winches double (3t) double rope traction, transport staff and lining materials; hoists the runway with a winch (2t) to tighten, In addition, the site symmetry at the bottom of the derrick cantilever mast for two, with two winches (3t) upgrading of materials, two separate winch (1t) Luffing operation.

井架上设天轮和钢丝绳跑道，装置吊笼，用双卷扬机（3t ）双绳牵引，运输人员和内衬材料；吊笼跑道用一台卷扬机（2t ）收紧，另外，在井架底部对称部位设悬臂桅杆两台，用两台卷扬机（3t ）提升物料，另设两台卷扬机（1t ）变幅操作。

A quarter model is used to simulate for the reason of symmetry. Punch, die and holder pad are regarded as rigid body because of little deformation.

考虑到对称性，取四分之一模型进行有限元模拟，由于凸模、凹模以及压边圈变形都很小，故将其视为刚体。

As a result, pressure fluctuation at one side of draft tube is greater than at the other side and it isn't symmetry distribution.

结果表明，其压力脉动在一侧较大，并非对称分布。

It can simulate the structures, analyze the symmetry elements, and imitate their emerge process for three allotropes of carbon family.

众所周知，碳族结构是晶体结构中几类典型结构之一，尤其是碳族结构化学的新进展是目前研究领域的热门话题川。3D stu-dio MaxR3具有卓越的三维动画制作功能，它能够准确、鲜明、生动地创建出一个个晶体结构模型，其强大的动画设置功能可明确的表述晶体结构中的对称元素；还能模拟晶体的生成过程，其优秀的视频处理使最终生成画面清晰、生动

The article on the spin symmetry of antiproton was published in PRL.

共发表SCI论文86篇，（在国外重要杂志上24篇）其中关于反质子自旋对称性的文章发表在PRL上。

On the basis of symmetry model of cosmos of material and antimatter energy with the center of star of antimatter and material of extra negative energy,this paper analyzed proton and antiproton of negative energy,which have not agglomerated to the star of antimatter and material of extra negative energy,and it puts forward that the space so called"empty with nothing"can produce young galaxy.

以特大负能反正物质星体为中心的正能正反物质对称宇宙模型的基础上，对尚未凝聚到特大负能反正物质星体中去的负能反正质子和所谓空无一物的空间区能产生年轻的星系作了进一步分析，从而发展成了正负能正反物质对称宇宙模型，使得更多的天文观测资料都能做出统一的解释

The nuclide chart involves electron, positron, antiproton, antineutron, photon to exhibit the symmetry of mass and charge ideally.

该核素图将电子、正电子、反质子、反中子和光子收录在内，完美地表现了质量和电荷的对称性。

He and Nina moved to California and lived at 2005 Ivar Street, Apt.

他和Nina搬到加州，并在2005年伊瓦尔街，公寓生活。

Droperidol （ potently inhibits transfected HERGchannels and this is the probable mechanism for QT prolongation.

氟哌利多有效地抑制了转染的 HERG 钾通道，可能是 QT 间期延长的机制。