查询词典 geometrical element

Forth, the broaching tool is tested and its structure and geometrical parameter is improved .

4对研制的刀具反复进行切削试验，不断分析、总结、改进其结构和几何参数。

The wide flexible openwork band formed of three latticework motifs set with cabochon rubies and small circular cut diamonds, connect by geometrical set with further circular cut and baguette diamonds.

柔软灵活的镂空宽手链，由3个镶嵌鹅蛋红宝石及小颗圆形切割钻石的格子图案组成，中间由几何图案连接，以更多圆形切割及长方形钻石镶嵌而成

In the spatial domain, canonical projection of the Wigner distribution function of the associated pupil function to show the insensitivity of the system's point spread function to the defocus-related aberrations is mainly used, and in the frequency domain, it is shown that the optical transfer function of such a system is also insensitive to misfocus through a geometrical description of the so-called Cornu spiral.

空域中，主要利用维格纳分布函数的正则投影来分析系统的点扩展函数对离焦像差的变化不敏感特性；频域中，则利用考纽螺线的图解方法来分析系统的光学传递函数对离焦像差的变化不敏感特性。

By taking advantage of a corollary of the Desargues theorem and the corresponging extension of Desarguesian configuration, the concept of stereohomology has been defined in projective geometry and presented based on homogeneous coordinates. Consequently, a series of geometrical transformations, such as central projection, parallel projection, centrosymmetry, translation transformation, reflection, rotation transformation, which can be contained in it or derived from it have also been analytically defined.

利用Desargues定理的一个推论和引申的Desargues图形，给出"空间透射"在射影几何意义下基于齐次坐标表象的解析定义，从而解析定义了可蕴涵其中的中心投影、平行投影、中心对称、平移、反射等几何变换以及可由此衍生出的旋转变换。

The circulation of a chain letter increases in geometrical progression as long as the instructions are followed by all recipients.

只要所有的收信人都按要求去做连锁信的流通量就以几何速度增长

After hundreds of discharge experiments under the conditions of different capillary geometrical parameters, Ablation capillary materials, the comprehensive experimental character of free injection plasma generator is worked out.

通过在不同毛细管几何参数、不同消融毛细管材料、不同PFN放电参数、不同脉冲叠加方式条件下的百余次放电实验，得出了自由喷射等离子体发生器主要放电特征参数在不同条件下较全面的实验变化规律。

There are randomicity on material character and geometrical size in structure of concrete self-anchored suspension bridge.

混凝土自锚式悬索桥材料特性、几何尺寸的随机性对结构的响应的影响是比较显著的。

The gap method is better than other methods to calculate the infiltration amount of wind through windows and doors gap, but the infiltration characteristic exponent of the gap method is influenced by some factors, such as differential pressure、fluid state、gap width、geometrical shape etc, It's Range of.

相对于其它方法，缝隙法可较准确的计算通过门窗缝隙的渗风量，但是缝隙法中的渗风特性指数受到压差、空气流态、缝宽、缝隙几何形状等因素的影响，变化范围在0.5～1.0之间，工程应用中一般取0.67，这给渗风的计算带来很大误差。

It also can be used to measure the geometrical tolerance, such as straightness error, roundness error, cylindricity error, parallelism error, perpendicularity error, angularity error, coaxiality error, symmetry error and circular run-out error etc.

该仪器集机、光、电于一体，采用了新的光路系统和近些年最新的测量方法及数据处理方法，具有功能多、体积小、重量轻、操作方便、非接触测量、测量精度高等特点。

By comparison between equations of motion of geometrical opticsand that of classical statistical mechanics,we find that there should be an analogy between GO and CSM instead of GO and classical mechanics.

本文将几何光学和经典统计力学的运动方程相比较之后，指出几何光学应与经典统计力学具有相似性，而不是与经典力学具有相似性。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。