查询词典 three-body problem

This paper presents in detail principal theory used to solve linear unbiased least variance estimation problem using Givens-Gentleman orthogonal transformation without square root computation and applies the theory to three stage-multiarc estimation.

本文详细介绍了利用不求平方根的Givens-Gentleman正交变换解线性无偏最小方差估计问题的基本原理以及这种方法在卫星激光测距三级复弧估计技术中的具体应用，给出了计算估值协方差的一组新的公式。

Abstract］ Objective To discuss the safety,effect and availability of treatment of abdominal emergency with laparoscopy.Methods The instruments were installed by three foramina methods after general anestheasia.Various operation applicable to the problem of case.For example salpingectomy,salpingotomy,partial ovariotomy,adnexectomy and pelvic abscess incision drainage.

摘要］ 目的探讨妇科急症腹腔镜手术的可行性、安全性及治疗效果方法在全麻下采取常规三孔法置入腹腔镜器械，根据不同疾病采取相应的手术方法，如：输卵管切除术，输卵管开窗术，卵巢部分切除术，侧附件切除术，脓肿切开引流术。

Methods The instruments were installed by three foramina methods after general anestheasia.Various operation applicable to the problem of case.For example salpingectomy,salpingotomy,partial ovariotomy,adnexectomy and pelvic abscess incision drainage.

在全麻下采取常规三孔法置入腹腔镜器械，根据不同疾病采取相应的手术方法，如：输卵管切除术，输卵管开窗术。

Methods:The instruments were installed by three foramina methods after general anestheasia.Various operation applicable to the problem of case.For example salpingectomy,salpingotomy,partial ovariotomy,adnexectomy and pelvic abscess incision drainage.

在全麻下采取常规三孔法置入腹腔镜器械，根据不同疾病采取相应的手术方法，如：输卵管切除术，输卵管开窗术，卵巢部分切除术，一侧附件切除术，脓肿切开引流术。

Base on the problem of large quantity fatigue loads on corroded R.C. structure and small quantity study of its mechanical property, bending resistance fatigue test of corroded R.C. beams is discussed in this paper. The influence of stress ratio and re-bar weight loss ratio on bending resistance fatigue performance of corroded R.C. beams are researched, and the relation between strains of corroded re-bars and fatigue life of beams are obtained. The main research contents and conclusions are as following: 1. Under the fatigue loads, the overstrain of concrete approximately coincidences three stages strain development and accumulation rule, and the mechanical property of concrete is deteriorated. The fatigue damage of concrete is accumulated. The overstrain of re-bars increases and the increase rate decreases.

鉴于实际工程中大量存在腐蚀钢筋混凝土结构承受反复荷载作用，但其力学性能研究不多的问题，本论文进行了锈蚀钢筋混凝土梁抗弯疲劳试验，研究了应力比和钢筋锈蚀率对锈蚀钢筋混凝土梁抗弯疲劳性能的影响，得出了锈蚀钢筋的应变与构件疲劳寿命之间的关系曲线，主要研究内容及结论如下：(1)在循环荷载下，混凝土残余变形基本符合三阶段变形规律，力学性能劣化，疲劳损伤积累。

In Chapter 5, we study three dimensional elasto-plastic frictional contact problems with orthotropic friction law. Parametric variational principle and parametric quadratic programming method are applied to analyze this class of complicated mechanics problems. A linear complementarity problem formulation is derived.

在第五章，我们采用正交各向异性摩擦定律模型对三维弹塑性摩擦接触问题进行分析，将正交各向异性的摩擦定律线性化后，将参变量变分原理和参数二次规划法应用到这一复杂的力学问题中来，最终将问题化为线性互补问题模型。

In the algorithm, a three-dimensional permute matrix of binary variables is used to map the problem to the neural network, the energy function including object item and overlap constrained item is presented, and then iteration procedure is put into practice with the mean annealing equation.

提出了一个基于均场退火方法的任意单元布局算法，用一个三维二值换位矩阵将问题映射为神经网络，建立包含重叠约束和优化目标的能量函数，再用均场退火方程迭代求解。

In the algorithm, a three-dimensional permute matrix of binary variables is used to map the problem to the neural network, the energy function including object item, overlap constrained item and timing constrained item is presented, and then iteration procedure is put into practice with the mean annealing equations.

算法用一个三维二值换位矩阵将问题映射为神经网络，建立包含时延约束、重叠约束和优化目标的能量函数，再用均场退火方程迭代求解。

In the algorithm,with a three-dimensional permute matrix of binary variablesubeing used to map the problem to the neural network,the energy function including object item,overlap constrained item and timing constrained item,is presented,and then iteration procedure is put into practice with the mean annealing equation.

算法用一个三维二值换位矩阵将问题映射为神经网络，建立包含时延约束、重叠约束和优化目标的能量函数，再用均场退火方程迭代求解。

It's chatactetisiics chiefly display three aspects.that is subject knowledge,effciency and perspicacity of problem settling.

其特征主要体现在学科知识、解决问题的效率和洞察力三个方面。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。