查询词典 Z-twist

The existing points and lines would form a closed geometric shape. If we put the new point Z outside the closed geometric shape at first and later then found that the point Z has neighboring relationship with the existing point A which is inside the closed geometric shape, we could not link point Z and A directly because that would bring line crossing. If we rearrange the point Z into the closed geometric shape, that also would cause a lot of work to do. With the help of Exclave, all problems could be solved easily. We use point X outside the closed geometric shape as the Exclave of the point A. Then the line between point Z and X could demonstrate the neighboring relationship of the point Z and A.

原有的各点和相邻线段往往会形成一个封闭的几何图形，如果我们把新增点 Z 设在原有的封闭几何图形外部，后来又发现该点 Z 和位于封闭几何图形内部的点 A 存在相邻关系，这时不能直接将两点连接因为那将产生交叉，而如果将点 Z 重新设在封闭图形内部也将导致大量的调整工作；此时借助外飞地的概念，可以轻松地解决上述问题，即在封闭几何图形外部设置点 X 作为点 A 的外飞地，两点使用同样的颜色，用点 Z 和点 X 的相邻线段表示点 Z 和点 A 之间的相邻关系。

Mastery: The Z-Transform, The Region of Convergence for the Z-Transform, The Inverse Z-Transform, Properties of the Z-Transform, System Function Algebra and Block Diagram Representations.

教学内容： Z 变换； Z 变换收敛域；逆 Z 变换；由零极点图对傅立叶变换进行几何求值； Z 变换性质；几个常用 Z 变换对；利用 Z 变换分析和表征线性时不变系统；系统函数的代数属性与方框图表示；单边 Z 变换。

Assuming that there is a plural Z and , with the following iterative calculation : Z = Z2 +, because the value of different , after several iteration number Z after the amplitude may tend to infinity. May also maintained sector, Mandebo Lott who is set to make Z maintained sector pool put on the complex plane make the distribution of images, as demonstrated above in the extremely complex structure.

假设有复数Z和μ，用下式迭代计算：Z=Z2＋μ，由于μ的取值不同，经过若干次数迭代以后Z的幅值可能趋向无穷，也可能保持有界，曼德勃罗特集就是那些使Z保持有界的μ的集合，把μ在复平面上的分布作成图像，就像上面演示的那样具有极其复杂的结构。

Secondly, the ground-state ionization potentials from Lithium-like to Neon-like isoelectronic sequences (Z: 37-82) are calculated systematically by using of MCDF method, and the effect and contribution of electron-correction energy and high-order correct are analyzed in detail, then their variational relations with Z are obtained, these shows that Breit interactions become important for the energy as the nuclear charge Z increases, but that of the QED only fluctuates around 0, then a new extrapolation formulae for IPS along an isoelectronic sequence is set up.

其次，用MCDF理论系统地研究和计算了中高Z元素Li-like到Ne-like等电子系列基态电离能(Z=37-82)，详细分析了电子相关能和高阶修正能量的影响和贡献，得到其等电子系列随Z的变化关系，结果表明Breit贡献随着Z的增加而迅速上升，而QED的贡献随Z的变化不大，仅仅在零上下波动，并建立了不同等电子系列电离能的新拟合公式。

The screening method of seven alleles (Z-6,Z-4,Z -2,Z,Z+2,Z+4 and Z+6) in then dinucleotide tandem repeat sequence was st udied. These alleles constitute a microsatellite DNA marker upstream of the tran scription initiation site on the aldose reductase gene.

湖南医科大学学报000103 摘要：研究了醛糖还原酶基因转录起始点上游-2.1kb处的微卫星DNA标记--n二核苷酸串联重复序列7种等位基因(Z+6，Z+4，Z+2，Z，Z-2，Z-4和Z-6)的筛选方法。

The screening method of seven alleles (Z-6,Z-4,Z -2,Z,Z+2,Z+4 and Z+6) in then dinucleotide tandem repeat sequence was st udied. These alleles constitute a microsatellite DNA marker upstream of the tran scription initiation site on the aldose reductase gene.

研究了醛糖还原酶基因转录起始点上游-2.1kb处的微卫星DNA标记--n二核苷酸串联重复序列7种等位基因(Z+6，Z+4，Z+2，Z，Z-2，Z-4和Z-6)的筛选方法。

But because difference among the predictions of different theoritical models in low z region is small, it is hard to tell us which model is more compatible with the experimental result. Our results from high z binning show a good consistence with the predictions based on z-dependence SU (3) asymmetry, quark-Diquark and pQCD model, which indicate the ud quarks in Λ hyperons provide contributions as well as s quark and the contribution is the function of z.

高z区间分法下归一法和螺旋度平衡法的分析结果显示同z依赖的SU（3）对称模型、夸克--反夸克模型和pQCD模型预言的纵向自旋转移值S〓和z的关系较一致，从而表明Λ超子中u夸克不但对Λ的极化有贡献，而且其贡献和Λ携带的能量份额z有关系。

It was preliminarily assumed that Z〓Z〓 hybrids were fertile male, and Z〓W〓 hybrids were abnormal and sterile. Negative interactions between Z chromosome from H. assulta and W chromosome from H. armigera maybe the major reasons for abnormality of hybrids.

初步判断，正交产生的子一代中，同配性别的Z〓Z〓为有生育能力的雄性子一代，异配性别的Z〓W〓为无生育能力的畸形子一代；Z〓染色体和W〓染色体的不协调可能是造成子一代生殖器官畸形的主要原因。

The experiment results indicate that higher phase splitting speed and extraction factor can be achieved when low-carbon alcohols such as n-butanol are used as organic solvents; by using five different N-carbobenzyloxy-L-amino acids as chiral ligands that are formated with Cu(superscript 2+) or Ni(superscript 2+), it is found that as a ligand, Z-Phe has a low extraction factor, while Z-Hyp, Z-Pro, Z-Glu, Z-Val have higher extraction factors, and among these, Z-Val has the highest distribution coefficient; pH value of extractant, when near to the PI of phenylalanine, helps to improve extraction resolution effect; temperature has no obvious effect on the resolution result.

结果表明：以低碳醇类正丁醇作有机稀释剂，所用5种N-苄氧羰基氨基酸（分别为Z-Phe、Z-Hyp、Z-Pro、Z-Glu、Z-Val）与Cu(上标 2+)或Ni(上标 2+)形成手性配位体后，以Z-Val作手性配体，萃取相pH值接近苯丙氨酸等电点时，萃取拆分效果最佳。

If the ratio of Z C1 to Z C3 is precisely the same as the ratio of Z C2 to Z C4, the bridge is said to be "nulled".

若 Z C1和 Z C3之比，和 Z C2和 Z C4之比相等，则电桥输出为零，没有意义。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了