查询词典 sequencing problem

Secondly,the transformed query trees derived by the sequences of the basic transformation operations are used to perform exact embeddings into XML data tree,so as to transform the problem of approximate XML query into the problem of exact XML query for transformed query trees.Thirdly,XML data distribution statistics based similarity degree computing model and optimization algorithm for TopK problem are given.

XML文档具有灵活的表达能力，而这种灵活的表达能力使得不同组织和个人建立的XML文档，难以遵照一个统一的数据模式，即使内容完全相同的文档，不同的组织和个人也很难按照统一的标准来建立结构和标识内容完全相同的XML文档，从而造成了XML文档数据的多样性。

Under Z-condition and strict pseudomonotonicity assumptions, we establish the equivalences among the equilibrium problem, the least element problem of the feasible set, and a related optimization problem.

在Z-条件及严格单调性假设下，我们得到：均衡问题、均衡问题可行集的最小元问题以及一个相关的优化问题等价。

The problem of sub-Riemannian geodesics is a Lagrange problem with constraint. How to describe the constraint condition "γ'∈ D, a. e." is a difficult problem.

次黎曼测地线问题是变分学中的一个有约束的Lagrange问题，但在变分的过程中有个难点―如何推出约束条件&γ'∈D，在上几乎处处成立&的解析式。

Through network, network learning high schooler the learning partner for option more , and have more favourable condition, learning can select own learning content first , seeks the learning who is studying same content , after opposite side agrees knot for learning partner, will meet in which one side problem , is mutual and convenient to be able to discuss mutually, never same angle exchange the view with a problem, help and remind mutually, until problem solves.

网络学习中学生可供选择的学习伙伴更多了，而且具有更多的有利条件，学习者可以先选择自己的学习内容，并通过网络查找正在学习同一内容的学习者，经对方同意结为学习伙伴，当其中一方遇到问题时，双方便可以互相讨论，从不同角度交换同一问题的看法，互相帮助和提醒，直到问题解决。

One problem facing governments in poverty - stricken countries, civil society, and international organizations is that poverty is a multidimensional problem with no simple solution — not least because of its sheer scale.

贫困国家政府、文明社会和国际组织面临的一个问题是：贫困是一个多方面的问题，没有简单的解决方案——由于涉及面广更是如此。

It is hard to find a problem that has more to do with being human; it is also difficult, with our current way of doing business, to understand where we should begin to take on this problem.

很难再找到一个比如何成就了人性更难的问题了，以我们现在的研究方法去做，也将同样的很难去知道要从何处去着手这个问题。

In order to solve the problem of the clustering of the zeros of permanental polynomials of the fullerenes, a multi-dimensional stable marriage model is proposed, relevant algorithms are given, and the clustering problem is solved.

本文提出了多维稳定婚姻问题的模型，同时相应地给出了算法，并成功地应用于富勒烯积和多项式零点的聚类问题。

If only the problem of chromatic aberration, not a quality problem.

如果只是色差的问题的，不属于质量问题。

Evaporator absciss layer problem is a big quality problem in electric refrigerator.If this situation occurs,there will be a lot of problems such as affecting refrigeration effect,shortening compressor life cycle,increasing power consumption and userscost.

蒸发器离层问题一直是电冰箱产品的一大质量难题，冰箱冷藏室蒸发器离层，不仅影响冰箱的制冷效果，缩短压缩机的使用寿命，同时增加耗电量，提高了用户的使用成本。

By utilizing an exponential transformation and piecewise linearization technique,transforming the exponential terms into the sum of absolute terms,and linearizing each absolute term,the original problem can be transformed into a linear programming problem which can be easily solved.

使用指数变换及利用分段线性化技术转变每个指数项为一些带绝对值项的和，再将绝对值项线性化，最终将原问题转化为一个线性规划问题。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。