几何结构

By using AM1 semiempirical quantum calculation method, the structures and electronic properties of N-methyl- pyrrolo[3,4]C60 and N-methyl-2-(2'-dimethylaniline- substituted dithienylen-thylene)- pyrrolo[3,4]C60 have been studied.

利用半经验AM1量子化学方法研究了N－甲基－吡咯烷并[3，4]C60及其噻吩取代衍生物的几何结构。

The emphasis is laid on the geometrical structure and mechanization of electrostatically supported gyro monitor . Its mathematic and error models are derived in detail and its self—alignment is solved also.

重点阐述了静电陀螺监控器的几何结构和工作原理，详细推导了其数学模型和误差模型，解决了其初始自对准的问题。

The design and manufacture of spiral bevel and hypoid gears are very difficult for their complicated geometrical structure of tooth form.

由于弧齿锥齿轮和准双曲面齿轮的齿面齿形几何结构的复杂性，使其设计、加工非常复杂。

The studied results provide scientific basis for the design and optimization of the louvered fin radiator, which have an important engineering value in a certain extent, it is useful to optimize the automobile cooling system.

本文对百叶窗翅片的流动和温度场进行了比较全面的数值模拟，分析了各种几何结构参数的影响，具有一定的学术意义和工程应用价值，为汽车冷却系统的优化设计提供了依据。

By employing the numerical simulation, the distribution and variation of thermal parameters such as pressure, velocity and so on in the louvered fins can be conducted in detail, on the basis of which, we can optimize the geometry structure, shorten the design period and reduce the experimental and design cost.

而采用CFD 软件对其温度场和流场的数值模拟分析，可以清楚的了解百叶窗翅片内部流场的压力、温度、速度等气动热力参数的分布和变化情况，优化其几何结构参数，从而大大降低实验设计费用，缩短设计周期。

In order to study the geometry effect on the performance of the louvered fin heat exchanger, a two dimensional numerical model is established for air side heat transfer and fluid flow characteristics for a type of louvered fin surface and the related numerical simulation is conducted.

heat transfer and flow characteristics ； numerical simulation ；为研究百叶窗翅片几何结构对换热器性能的影响，采用二维计算模型，对空气流经一种类型的百叶窗翅片的传热和流动特性进行了数值模拟，获得了百叶窗翅片的温度场、速度场和流线图。

Optimized and calculated geometric structure and infrared spectrum of benzoic acid molecule with density functional B3LYP method on 6-311G ** base cluster level,and compared the calculated infrared frequency of each conformation of benzoic acid with actually-measured infrared spectrum,thus determined molecula.

用密度泛函 B3LYP方法在6-311G**基组水平上对苯甲酸分子的几何结构和红外光谱进行了优化和计算，并将计算所得的苯甲酸各构象的红外频率与其实测的红外光谱进行比较，确定了在晶体中苯甲酸的分子结构，同时在计算中给出了各种频率所对应的红外强度，对光谱进行了归属。

Etc. 4. The equivalent method is presented to compute the capacitance of a multiconductor system.

系统地研究了低频声散射、电磁散射与散射体几何结构参数的直接联系； 3。

A multidirectional morphological filtering algorithm is proposed by use of the characteristics of morphology's multisolution analysis and fastly-computing.

不仅有效地抑制了因海水后向散射引起的散斑噪声，同时保留了激光水下目标图像的几何结构细节特征。

Fast and widely tunable OPA have been investigated by employing QPM technique and noncollinear geometry in PPLN crystal.

利用周期性极化晶体PPLN，研究了使用准相位匹配技术和非共线几何结构的宽范围高速OPA波长调谐。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。