双重对称的

Agricultural insurance was in a critical state of asymmetric information, in particular of adverse selection problems.

农业保险发展缓慢的主要原因是由于保险公司内部原因，以及弱质农业本身在面临市场和自然双重风险威胁时，为农业保驾护航的农业保险却陷入了信息不对称引起的逆向选择问题。

M.C. Escher is a great modern Dutch printer, and his works are outstanding for their artistic combination of ration and imagination and of science and art, which is closely related to his study on mathematical methods, especially the principles of symmetry in geometry.

荷兰现代版画家M.C。埃舍尔的作品兼备理性与幻想、融合了科学与艺术的双重特性，这与他坚持不懈的对数学方法，特别是几何方法中对称原理的研究有着内在联系。

Based on the newsboy model and Bayesian analysis, supply chain system in demand forecast update conditions with asymmetry is described in order to analyze the asymmetry information and double marginalization.

本文在报童模型和贝叶斯分析模型的基础上对不对称信息下具有需求预测更新的供应链系统进行了描述，并分析了信息不对称和双重定价问题。

ABSTRACT: This article studies on the questions that there are non-symmetry and lack of restrict in drive and restraint of the state-owned mine enterprise operator, and it proposes the drive measures and restraint measures (ownership restraint, internal government structure restraint, market restraint, law and system restraint, operator ' s self- restraint and outside supervision restrain) to improve drive and restraint of the state-owned mine enterprise operator.

本文重点探讨了国有矿山企业经营者激励与约束存在的激励约束的不对称及激励约束的双重弱化等问题，并通过对问题产生的原因进行分析，提出了进一步完善国有矿山企业经营者激励与约束机制的激励措施和约束措施（所有权约束，内部治理结构约束，市场约束，法律及制度约束，经营者的自我约束及外部监督约束）。

The first layer of principal-agent comes into being between investors and venture capitalists and the second between venture capitalists and entrepreneurs. Under the two-ply mechanism of principal-agent, high risk and technical propriety result in the serious asymmetry of information between principal and agent, which makes the agent problem severely.

在投资者和风险投资家之间形成了第一重委托代理，在风险投资家和创业家之间形成了第二重委托代理，在双重委托代理机制下，风险投资的高风险性、技术的专业性等原因导致了委托人与代理人之间严重的信息不对称，使得代理问题十分突出。

In accordance of dynamical analysis to asymmetric basin forming, it is restricted doubly by crust multi-layer rheological structure and regional geotectology background in the Lower Yangtze regional crust, especially in close relationship with action of C-layer (18-20km) in the Lower Yangtze region crust. After quantitative analysis of mutual relation between the basin geometrical feature and the crustal structure, a new way will be supplied to the research of Mesozoic-Cenozoic sedimentary basin evolution and the oil -gas exploration in the Lower Yangtze region.

在此基础上，对非对称盆地形成的动力学分析认为，它受下扬子地区地壳多层次流变结构及区域大地构造背景的双重制约，尤其与下扬子地区地壳C层(18-20Km)的活动密切有关，定量分析了盆地的几何学特征与地壳结构之间的相互关系，为下扬子地区中新生代沉积盆地演化的研究及其油气勘探提供了新的研究途径。

In this prospective, double-blind, crossover study by the Deep-Brain Stimulation for Parkinson's Disease Study Group, electrodes were implanted bilaterally in the subthalamic nucleus in 96 patients, and in the globus pallidus in 38 patients.

在这项前瞻性、双重盲目、交叉进行的研究中，该团体Deep-Brain Stimulation for Parkinson's Disease Study Group以电极左右对称地植入在九十六位病患的丘脑下，与三十八位病患的苍白球上。

Whether you're sessioning the park or cruising the mountain for every possible tranny, the Quantum is not only performance driven with its Dual-Transitional sidecut and dual-density base, but it's a true twin shape designed to conquer every transition or jib. The highly elastic brass edges are designed for added durability and to keep your edges from cracking or catching on rails.

无论你是否曾经在单板公园耍酷或者是在雪山上巡航，这款板都不仅仅发挥出他那双重过渡的边刃以及加倍密度的板底，而且他还是一个地地道道的左右对称的板头设计用于征服每一个跳跃或者是跐杆，高弹性的黄铜刃将更加的耐磨并且能使你的刃在铁杆上不会被撞断或者被卡住。

The second-order perturbation formulas of the g factors and hyperfine structure constants for the lowest Kramers doublet Γ〓 of a 3d〓 ion under various octahedral symmetries (cubic, tetragonal, trigonal and rhombic) are established.

在较统一的理论模型和计算方法上建立了在各种对称性（立方、四角、三角和斜方）的八面体晶场中3d〓离子最低Kramers双重态Γ〓的g和A因子的二阶微扰公式，其中包含了前人通常忽略的组态相互作用、共价效应以及低对称畸变对自旋哈密顿参量的贡献。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐