旋

In this thesis, a totally new type of chiral heteropolyanion, [Sb_5_(10)Mo_5O_(26)]~(7-), has been isolated as racemic compound 1. The racemate was further resolved into enantiomerically pure crystals L-2 and R-2 by addition of organic units.

本文我们得到了一个由新的手性多阴离子[Sb_5_(10)Mo_5O_(26)]~(7-)构筑的外消旋体1，通过向外消旋体1的溶液中加入有机基团，实现了对外消旋体1的拆分得到了纯旋光活性化合物2，即L-2和R-2。

In the first one , Our experiment team use ethanol liquor as solvent and achieve the process of racemization of dextrorotatory imidazole in sodium hydroxide environment.

四咪唑的原料成本要比左旋咪唑低50%，其临床驱虫效果也要比左旋咪唑小50%。左旋咪唑的疗效是消旋体的两倍，毒性低一半。

Especially, spinel half-metal materials have high Curie temperature, stable physical properties, and large room-temperature spin-polarization so that they have huge potential application in many areas including read-write magnetic head of computers, magnetic static-state random memorizer, magnetic sensors and spin transistors.

尤其是尖晶石结构半金属材料因居里温度高、性能稳定、室温自旋极化率大等优点而被认为是最具应用潜力的自旋电子材料之一，它在计算机读写磁头、磁静态随机存储器、磁性传感器、自旋晶体管等自旋电子器件中极具应用潜力。

The phase diagram of spin configurations of the two - sublattice system are derived by both the mean field theory and the spin wave theory. The effect of the anisotropies of the two sublattices on the spin waves is discussed.

用自旋波量子理论解析导出双亚点阵系统的自旋织构的相图，比较了自旋波理论和分子场理论导出的结果，分析了不同磁晶各向异性对自旋波的影响。

In the present study, the FEM model of non-symmetric spinning has been established and the spinning process has been simulated, which reveals deformation characteristics of non-symmetric tube spinning.

文章建立了三旋轮非对称强旋的有限元计算模型，通过对非对称强旋的三维刚粘塑性有限元数值模拟，揭示了非对称强旋的变形特点。

This paper studied the calculating method of the spiral-fluted tube's spinning force, which can provide basic theory for designing spinning shaping equipemnt, establishing spinning shaping technology and designing spinning tools.

摘 要：研究了薄壁圆管螺旋槽旋压成形时力的计算方法，可为设计旋压成形设备、编制旋压工艺、设计旋压工夹具提供理论依据。

Tube spinning with non-symmetric distribution of three rollers has special advantages in hot spinning of large-diameter tubular workpieces, but there is little information available in the literature concerning non-symmetric spinning.

三旋轮非对称强旋在大型筒形件热旋工艺中具有独特的优势，然而关于非对称强旋的研究开展较少。

Our scientific research, development, production, operating in one, are specializing in the production of pharmaceutical intermediates business, main products has L p-hydroxyphenylglycine Deng sylvite, L-p-hydroxyphenylglycine, L-annual production of 1,000 tons of p-hydroxyphenylglycine, L-leucine p-Tang Sylvite 1500 tons, sold more than the national pharmaceutical companies have some products for export and domestic enterprises set up a long-term and stable cooperative relations high-quality products in order to win the praise of the vast number of users.

我公司集科研、开发、生产、经营于一体，是医药中间体专业生产企业，主要产品有左旋对羟基苯甘氨酸邓钾盐、左旋对羟基苯甘氨酸，年生产左旋对羟基苯甘氨酸1000吨，左旋对羟基苯氨酸邓钾盐1500吨，销往全国多家药厂，已有部分产品出口，并与国内多家企业建立了长期、稳定的合作关系，以高质量的产品赢得了广大用户的赞誉。

The weapon has 2 degrees of rotation ( it pitches and yaws, ie. Aim anywhere in the hemisphere around the hardpoint ): you can use 1 dynamic base for the "yawing" part, and 1 dynamic barrel/gun for the "pitching" part, attached to the yawing base.

武器拥有两个旋转轴（它可以俯仰和自旋，例如：炮口可以指向挂载点一侧半球内的任意方向）：你可以用1个动态的基座来完成"自旋"部分，和1个动态的炮管/枪管完成"俯仰"部分，附加在自旋基座上。

In experiments ,an injection of cytoplasm from dextral eggs changes the attern of sinistral eggs ,but an injection from sinistral eggs does not infl uence dextral eggs .

在实验中，用取自右旋卵子的细胞质进行的注射，可改变左旋卵子的模式；用取自左旋卵子的细胞质进行的注射却不能影响到右旋卵子。

I am sure after a few weeks of adaptation and familiarization I will have no difficulty in functioning on a daily basis in an English speaking society or in participating fully in graduate studies.

在大学的三年的学习生活不仅给予我自身的充实，更重要的是磨练和培养了我较强的自觉能力和严谨，踏实的作风以及不怕困难的精神，对未来充满了信心！

As the first volcanoes erupted, one of the gases that bellowed out was steam.

在第一批火山喷发时，喷出的气体之一就是水蒸汽。