查询词典 geometrical mean

The models based on geometrical cell and boundary constraints are introduced to describe free-form surfaces.

建立了以几何元胞和边界条件为特征的自由曲线曲面几何形状描述方法。

Through the analysis of geometrical features of Mesozoic-Cenzoic sedimentary basins in the Lower Yangtze area, we think them to be asymmetric tectonic sinked basins. They are bounded by a set of boundary fault system and failed conjugate fault, and they are segmented along axes.

通过对下扬子区中、新生代非对称性沉积盆地的几何学特征分析，认为这种非对称性构造沉降盆地在剖面上表现为由一组主边界断层和一组天折的共轭断层所围限，而且在走向上具有分段特征。

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。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48