可构造的

Being enlighten from the Schwartz KP equation,we give out a(3+1)dimensional conformal invariant equation that possessesPainlevéproperty.

我们利用已知的(2+1)维Kadomtsev-Petviashvilli方程的Schwartz形式，构造了一个具有共形不变性的Painlevé可积的(3+1)维的模型。

Only if the finished-goods market is competitive and a fair environment in the upstream industry for existing firms and potential firms is built, the monopsony behaviors in the intermediated-goods market can be broken.

要打破中间产品市场的买方垄断，必须在下游行业构造可竞争性的市场结构，为上游行业的潜在竞争者进入和在位厂商之间的竞争创造公平的市场环境。

In the first part of this paper, we give some basic concepts of regular Sturm-Liouville problems and some Sturm-Liouville problems with eigenparameter in the boundary conditions and the definition and properties of the Krein space. Using the Krein space, we describe a class of Sturm-Liouville problems with eigenparameter in two boundary conditions and prove that it can generate a self-adjoint operator in Krein space with only point spectrum.

第一部分我们介绍了一些基本概念如正则Sturm-Liouville问题、边界条件含参数的问题、Krein空间等，并利用Krein空间的定义和性质描述了一类参数边界条件的Sturm-Liouville问题，证明它可构造一Krein空间上的自伴算子，并且谱全为点谱。

From the above theorem,（1） compositional invariant security properties and constructive security properties are proved to exist, and （2） security properties are degraded under operators of process algebra, which is known as "bucket principle", i.e, a composed system cannot be securer than the weakest link of the system.

根据这一结果证明了复合不变性质和可构造安全性质在安全性质集上的存在性，并且在安全性质集合上证明了安全性质的"木桶原理"，即复合系统的整体安全性不强于系统中最弱的部分。

The integrated "Master Plant Logical Fault Tree"method adopted in this estimation reflects the advanced tendency of modern and powerful evaluation of PSA. The VIRA system and the"Master Plant Logical Fault Tree of GNPS"have an advantages of not only easily and simple in operation, suitable for different levels of people, but also of practical value, especially in making sensitivity study and optimization analysis.

结合文章所需而发展的可视化的可靠性分析软件—VIRA系统及基于VIRA而构造的GNPS主逻辑故障树模型，不仅操作起来简单方便，适用于不同层次的人员，而且实用，便于进行敏感性分析及方案比较计算。

For the structural design parameters of flat - slab beamless pile structure which can be directly used for the low embankment of soft weak subgrade of passenger dedicated line, the analyses are made for the all performance indexes of the structure under the static and dynamic conditions by using a space calculation model.

研究方法：根据相关规范和规定，分析了既有特殊路基和桥梁结构工程，研究了各种构造的优缺点，针对客专拟定可直接用于工程的软弱地基低矮路堤的无梁板式桩柱结构设计参数，采用空间计算模型分析该结构在静力和动力情况下的各项性能指标。

The combination of DWI and PWI has promising future in identifying ischemic areas potentially salvageable.

除了可以从传统的脉冲序列，如T1WI和T2 WI得到大脑解剖构造的讯息，更可使用DWI和PWI之间异常范围的不一致性来做到预测缺血半阴影区域的目的，也已被使用在新治疗方法临床试验中，作为筛选病人的方法。

The novel scheme employs verifiably encrypted RSA signatures in the extended integer ring that is elaborately constructed. The security and efficiency of the newly devised scheme are also proved and examined.

在此基础上，利用精心构造的扩环中可公开验证的、加密的RSA签名，提出了一种完全基于RSA签名方案的优化公平交换协议，并对其安全性和效率进行了证明和分析。

Using maximal ancestral graph models, this paper characterizes the independencies and causal structure of the observed variables and provides an algorithm for causal inference using observational data.

作者利用在观测变量上构造的最大祖先图模型刻画观测变量间的独立性关系和因果结构，并提出了具体的实现算法，从而可由观测数据来推断这类不完全观测下的部分因果关系。

The basic principle is to use a series of rules with a high degree of adjustable basic body Based on the basic body of the real-time control, to construct the required shape forming face, replace the traditional mold of the plate to achieve rapid 3D-Forming.

其基本原理是利用一系列规则排列、高度可调的基本体，通过对各基本体的实时控制，构造出所需形状的成形面，取代传统的模具来实现板材的三维曲面快速无模成形。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。