查询词典 orbit

Invariant Manifold: An unstable periodic orbit in a Hamiltonian system (a general class of differential equations which includes the three body problem) have associated two families of orbits forming tubes connected to the periodic orbit.

不变流形：一个不稳定的周期轨道的哈密顿系统（一个微分方程一般类，其中包括三个体问题）有关联的两个形成连接管轨道周期轨道的家庭。

Chandrayaan to enter tricky lunar orbit today 8 Nov 2008, 0352 hrs IST, Srinivas Laxman, TNN Print Email Discuss Share Save Comment Text: MUMBAI: Saturday evening would mark the D-day for India's prestigious Rs 386-crore moon mission, Chandrayaan-1, when the tricky lunar orbit insertion takes place — expectedly between 5 pm and 6 pm.

用Google翻译如下：月球进入月球轨道棘手的今天 2008年11月八日， 0352至29日， Srinivas拉克斯曼， TNN 打印电邮讨论分享节省评论文字：孟买：星期六晚上将标志着D -日，印度著名的卢比386亿卢比月球任务，月球- 1 ，当棘手的月球轨道插入发生-果然下午五时至下午6时。

On the basis of analytical orbit theory, the state transition matrix from mean to transient orbit errors was put forward.

在解析轨道理论基础上，给出了平均轨道要素偏差到瞬时轨道要素偏差的状态转移矩阵。

Results The etiology of exophthalmos in children includes two aspects:（1）the outside of ocular diseases,mainly including Langerhans cell histiocytosis,chloroma,neuroblastoma etc.（2）ocu-lar diseases,mainly including retioblastoma,rhabdomyosarcoma of the orbit,glioma of optic nerve and angioma of the orbit and so on.

结果 提示小儿突眼病因主要包括两方面：（1）眼外疾患，主要包括有郎格罕组织细胞增生症、绿色瘤、神经母细胞瘤等；（2）眼部疾患，主要包括视网膜母细胞瘤、眶横纹肌肉瘤、视神经胶质瘤、眶内血管瘤等。

Conclution Rconstruction of the orbit and repositioning of enophthalmos of orbital fractures can obtain satisfactory result, and early repairing is better than late repairing. There is no impairment in reconstrction of the orbit and reposition of enophthalmos of orbital fractures, which is an safe and effective surgical technique.

采用人工材料行眼眶重建和眶内充填技术手术治疗眼球内陷可获得满意的疗效，早期手术效果优于晚期手术，手术创伤对视功能无明显影响，眼眶重建和眼球复位手术是安全可行的。

By simulating the EPR parameter D and the optical spectra, the distorted angles of two inequivalent sites which formed by Cr3+ replacing M3+ are determined and the obvious differences of the distorted angles calculated by using two spin orbit coupling parameter model and single spin orbit coupling parameter model are found.

通过模拟光谱和EPR谱确定了Cr3+取代 M3+形成的两种占位结构的畸变角，发现用双自旋轨道耦合系数模型与单自旋轨道耦合系数模型计算出的畸变角存在较大的差异。

Results There was not specificity of clinical symptoms in liposarcoma of the orbit, the major clinical aspects were intraorbital occupied lesion and local hyperaemia,swell and pain which was similar to an acute inflammation. Four different subtypes of liposarcomas could be observed in orbit.In past literature,myxoid was the most common subtype（14 cases,70%）,secondly subtype was well differentiated（3 case）,round cell and pleomorphic subtype were rare（each 1 case）.This case was well differentiated mixed component of round and pleomorphic lipoblasts.

结果：脂肪肉瘤临床表现为眶内占位和貌似急性炎症的局部红、肿、痛，无特征性的症状；病理分型4型，文献中报道以粘液样型最多见（14例，占70%）；次为分化良好型，3例；圆形细胞为主型及多型性各1例；分型不详2例；本例为分化良好型为主伴有圆形脂母细胞及多型性脂母细胞成分。

Contrastenhanced magnetic resonance imaging of the orbit showed a giant frontal mucocele with bony erosion and compression of the right orbit.

眼眶的核磁共振摄影发现巨大额窦黏液囊肿合并骨质侵蚀及压迫右眼球。

Then the orbit of a satellite with perturbations (including the nonspherical perturbation, the solar and lunar gravity, the solar radiation pressure and the drag of atmosphere) is simulated. The observations of SINS and GPS are derived from the orbit.

然后在考虑地球扁率、大气阻力、日月引力、光压等摄动力的影响下仿真出了卫星标准轨道，在此基础上仿真出SINS、GPS的测量信息。

Focusing on the requirement of on-orbit-servicing spacecraft to targeter in eccentric orbits,the initial conditions for the chaser flying around the targeter and the optimal control algorithm used to keep the flyaround orbit under perturbance were presented.

针对在轨服务航天器相对椭圆轨道目标器任务要求，提出了追踪器相对目标器进行绕飞的初始条件及考虑各种摄动情况下轨道保持的最优控制算法。

The receding calculations and experiment analyses in this subject are built on the blood cast of pig tongue.

本研究课题的前期工作是采用猪舌血管铸型模拟人舌而进行的数值计算与实验分析。

"Each human infection constitutes an opportunity for genetic modification of the virus through reassortment, mutation, or both...."

&每一次人类的感染都暗藏着一次基因修改的机会，无论是通过病毒的整合、突变或者兼而有之。。。。&