二元的

A Right-Triangulated Irregular Network [5] is a special TIN using isosceles right-angled triangles,formed as a binary tree by splitting along the perpendicular bisector to the hypotenuse.

右三角网[ 5 ]是一种特殊的TIN使用了等腰直角三角，形成了一个二元树结构的分裂沿垂线的斜边。

Based on the invariance of maximum likelihood estimation, the sufficient and necessary condition under which the maximum likelihood estimation has invariance for the parameters are given, then it uses this conclusion to calculate the maximum likelihood estimation of σ^2 and ρ for bivariate normal distribution.

根据参数极大似然估计不变性原则，给出在一定条件下极大似然估计具有不变性的充分必要条件，并利用该结论计算了二元正态分布Z=的未知参数σ^2和ρ的极大似然估计值。

The substance of Manichism was Chaldean astrology and folklore cast in a rigid dualistic mould; if Christianity was brought in, it was only through force of historical circumstances.

实质manichism是chaldean占星学和民俗学投在一个僵化的二元模具；如果基督教带来的，这是只有通过武力的历史条件下。

The interaction between chemisorption and multilayer surface segregation is discussed in detail.

采用格林函数方法和多重耦合自洽相干势近似方法，研究了氢在Au-Ag多层偏析无序二元合金表面的化学吸附，详细地讨论了DBA表面的多层偏析和化学吸附间的相互影响。

The binary system containing the alkanolamide/HPAM and the three compound combination system containing alkanolamide/HPAM/alkali which was prepared, the interfacial tension between Daqing crude oil and system was researched, the compatibleness between alkanolamide surfactant of different carbon numbers and oily sewage was investigated.

配制了烷醇酰胺/HPAM二元驱油体系、烷醇酰胺/HPAM/碱三元驱油体系，考察了体系与大庆四厂原油的界面张力，研究了不同碳链长度的烷醇酰胺表面活性剂与大庆四厂油水的配伍性。

It is claimed that discourse coherence enjoys in nature the dichotomy between overtness and covertness, objectivity and subjectivity, determinacy and indeterminacy.

文章在分析了连贯的二元性特征的基础上，试图从语言形式、语用环境和认知心理三个方面来建立连贯的三个阐释标准。

Limit cycle flutter of a two-dimensional airfoil in cubic nonlinear aeroelastic system in incompressible flow is investigated.

引 言 在不可压缩流中的二元机翼是一个典型的自激振动的例子，在该系统中引入非线性项一般会产生如Hopf分岔，极限环颤振[1]，周期倍化及混沌等现象。

Cobalt (100) face of hexagonal system parallels example surface and the intensity of diffraction peaks increased obviously. Finally the possibility of codeposition of PTFE and cupper or other metal alloys was initially researched.

最后，初步探索了PTFE与Cu或二元合金共沉积的可能性，试验结果显示，它们均可形成PTFE和金属的复合镀层，与无PTFE的金属合金层对比后发现，各复合镀层摩擦学性能都有所提高。

Metacyclic group, which is the expansion of a cyclic group by a cyclic group, is a special group generated by two elements.

亚循环群，即循环群被循环群的扩张，是特殊的二元生成群，Otto Hlder曾研究并给出了有限亚循环群的构造；G。

Two-dimensional Bernstein type operators on simplex are constructed, and a necessary and sufficient condition of uniform approximation by mem is obtained, at the same time, the degree of approximation is characterized by two-order moduli of smoothness.

并且构造出单纯形上推广的二元Bernstein型算子，给出其一致收敛的一个充要条件，同时用二阶连续模刻划了它们的逼近度性质。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。