二元的

The associated decision function of nonterminal node is used to decidepath and model structure.

由二元决策树非终结点的决策函数决定路径直至选定模型结构。

In the methods of research, this paper pays attention to the combination of demology, economics and sociology etc, uses the scientific elements in the existing research results, and unites it with the reality of China closely. In the background of dualistic structure, it emphasizes particularly on the rural old-age security issues to do an intersectional research. It combines the theory with the reality, combines the qualitative research and quantitative research. The countermeasures are realistic, feasible and far-sighted.

在研究方法上，本论文注重人口学、经济学、社会学等理论方法的结合，合理借鉴国内外已有研究成果科学成份，紧密结合中国实际，在"二元结构"大背景下，侧重对农村养老保障问题进行交叉研究，做到理论与实际想结合，定性与定量分析相结合，对策研究注重现实性、可行性和前瞻性。

Satisfiability (2SAT) is a determinable problem in polynomial time.

二元可满足性问题是一个多项式可解的问题。

ExxonMobil Chemical is one of the world′s leading producers of EPM copolymers and EPDM (ethylene propylene diene rubber) terpolymers.

埃克森美孚化工是世界领先的二元乙丙橡胶和三元乙丙橡胶 EPDM）生产商。

ExxonMobil Chemical is one of the world′s lead ing producers of EPM copolymers and EPDM (ethylene propylene diene rubber) terpolymers.

埃克森美孚化工是世界领先的二元乙丙橡胶和三元乙丙橡胶 EPDM）生产商。

As we all know, if the two partial derivations of binary function are continuous ,the function is differentiable.

摘要众所周知，当二元函数的两个偏导数都连续时，函数可微。

First of all, it is proved that if one partial derivation is continuous,the other partial derivation exists,the binary function is differentiable.

首先证明了当二元函数的一个偏导数存在，另一个偏导数连续时，函数可微。

For binary optical elements, diffraction efficiency is one of the important performance indexes.

衍射效率是评价二元光学器件质量性能的重要指标之一。

As for polyether PUA, a new hydrophilic diol was synthesized from trimethylol propane and maleic anhydride.

在聚醚型PUA中以三羟甲基丙烷和马来酸酐为原料，合成了一种新的亲水二元醇。

The development of rural education is help for decrease population pressure, economical reforming and population divergence in base of dual economic structure.

在二元经济结构背景下，发展农村教育对挖掘我国人力资源潜力、推进农村转型、解决农民分流等均具有重要的意义。

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。