查询词典 orbit space

In this paper, the pointwise pseudo-orbit tracing property is defined on a compact metric space, and it is a generalization of pseudo-orbit tracing property.

本文给出紧致度量空间逐点伪轨跟踪性质的定义，该定义是伪轨跟踪性质定义的推广。

The cyst locations in the decreasing order of frequency were anterior orbit (69%), subconjunctival space (24.6%), posterior orbit (5.8%), and the eyelid (0.6%).

包囊出现在下列部位的频率从高到低依次为前眼眶（69％）、结膜下间隙（24.6％）、后眼眶（5.8％）以及眼睑（0.6％）。

The on orbit detected results of attitude, orbit, visible light and infrared scanning radiometer, space particle composition monitor, transmission channel, on board memory and other characteristic of the satellite are presented and analyzed.

对中国这样一个农业大国来说，目前气象卫星数据在气象、水文、农业以及灾情监测等领域的作用正在日益增强。

Using the analytic results above, in chapter 4, a special data relay constellation is designed for space station, which include mainly the selection of orbit altitude, eccentricity, inclination, longitude of ascending node, the number of orbit and distribution of satellite.

探讨了卫星相对于天基的运动特性，并利用地基运动特性的结果，得到了卫星相对于空间站在过顶时间限制条件下的升交点取值范围。

The main platform for the space elevator would have to be placed in the geosynchronous or "Clarke" orbit where satellites take 24 hours to orbit the Earth, and thereby hover above the same point on the ground.

太空之梯的主体平台将会被放在卫星全天环绕地球且保持在同一点上空的同步轨道上――或称之为克拉克轨道。

As each carrying fuel of space robot is limited, it is very important to improve the efficiency of space robot and extension of its in-orbit life. This paper analyzed multi space station path planning problem.

空间机器人每次携带的燃料有限，提高空间机器人的工作效率以及延长其在轨寿命研究具有重要意义，分析了空间机器人多空间站访问问题。

Chang'e-1 creates the seven "firsts" in China's space history: the first to probe the lunar; the first to break through near earth orbit; the first to take pictures for the moon, using stereophotograph to acquire 3-D images; the first to explore elements on the lunar surface; the first to investigate the thickness and distribution of lunar soil, using microwave radiometer; the first to introduce astronomical survey into space instrumentation and command; and the first to use Internet for further space instrumentation and command.

嫦娥一号开创了我国航天史上的七项第一：第一次探测月球；第一次突破地球近地轨道；第一次为月球"画像"，真正用立体相机来获得月球三维影像；第一次探测月球表面元素；第一次利用微波辐射计探测月壤厚度及其分布；第一次在航天器的测控中引入天文测量手段；以及第一次利用国际联网对航天器进行深控。

October 30, 2009 - Operated by Canadian Space Agency Astronaut Robert Thirsk with assistance from European Space Agency Astronaut Frank De Winne and NASA astronaut Nicole Stott, Canadarm2 guides the unpiloted Japanese H-II Transfer Vehicle a safe distance from the International Space Station to be released into the Earth's orbit.

2009年10月30号-由加拿大航天局宇航员罗伯特·瑟斯克和欧洲航天局宇航员弗兰克·温内以及美国航天局的宇航员妮可·斯托特一起操作，加拿大二号指令日本的H - II无人驾驶运输飞行器从国际空间站的一个安全距离释放到地球轨道上。

In 1991, while monitoring a space shuttle mission, in the secret Mission Control Center, at the Kennedy Space Center, I was flabbergasted to observe an entity that was eight to nine feet in height in the open Space Shuttle Pay Load Bay while it was in earth orbit.

在1991年，当监控一项太空穿梭机任务，在肯尼迪航天中心的秘密飞行控制中心，我被吓一惊当观察到一件实体，是8至9呎高在开放的太空穿梭机载重湾，尽管它在地球轨道。

The main work and the originality points of this dissertation could be concluded as the following parts:(1) To analyze systematically the mathematical model of LES of air flow in great space, under the case of isothermal and non-isothermal, as well as the combined action of buoyancy and strain. Some basic problems are studied about the LES application into airflow simulation of great space, such as boundary conditions, spatial difference scheme and time advancing scheme, time step etc., which creates the basis for the LES application to indoor airflow simulation.(2) Both the instantaneous and time averaged flow field of great space with multiple jets under isothermal and non-isothermal cases are explored with large eddy simulation method, and also discussed the dynamic characteristics and the law of fluidflow in the great space.(3) Based on the results of LES of the great space and the Fanger thermal comfort indexes, it is brought forward the concept of the series of dynamic thermal comfort evaluating indexes, which could be divided into thermal comfort index with time averaged properties PD, PPD, PMV, thermal comfort index with instantaneous properties IPD, IPPD, IPMV, and time averaged thermal comfort indexes TAPD, TAPPD, TAPMV, and transient situations time averaged thermal comfort indexes TTAPD, TTAPPD, TTAPMV. The differences among them and the calculation methods are discussed, and the four kinds of indexes are calculated with the thermal comfort index PD as an example.(4) Based on the LES results it is discussed the hot air stratification phenomena in air-conditioned buildings in the case with air supply and return registers on the ceiling and the case on the sidewall. The fundamentals of the hot air stratification are studied and the relations of estimating hot air stratification are brought forward.(5) With the advanced apparatus such as hot wire film anemometer IFA300 and laser particle field anemoscope, corresponding model test and site measurements have been done, which are compared with the simulation results and LES is proved a very promising method in air flow simulation indoor.

本文主要工作既创新点体现在以下几个方面：(1)系统分析了等温、非等温和考虑剪切力与浮升力综合作用的高大空间大涡模拟数学模型，并研究了高大空间大涡模拟在室内气流仿真应用中的一些基本问题，如边界条件、空间离散格式和时间推进格式、时间步长选择等问题，为大涡模拟在室内气流计算中的广泛应用打下了基础；(2)首次用大涡模拟方法研究了高雷诺数下高大空间多射流在等温、非等温情况下的瞬时流场和时均流场分布，并探讨了多射流流场的动态特性和流动规律；(3)基于大涡模拟的动态仿真结果和Fanger的热舒适指标，首次系统地提出了动态热舒适评价指标体系的概念：即基于时间平均参数的热舒适指标PD、PPD、PMV；基于瞬时参数的瞬时热指标IPD、IPPD、IPMV；基于时间平均热舒适指标TAPD、TAPPD、TAPMV；以及沿行动迹线的时间平均热舒适指标TTAPD、TTAPPD、TTAPMV，并分析了四类热舒适指标的差异性和计算方法，还以PD值为例对四类指标分别进行了计算；(4)基于数十种工况下空调房间大涡模拟的结果，研究了空调建筑上送上回和侧送侧回两种情况下热分层现象，并探讨了热分层的基本规律，首次提出了避免热分层现象的判断公式；(5)在暖通空调领域，首次使用IFA300热线风速仪、激光粒子速度场仪等先进设备，完成了与大涡模拟相对应的模型试验，并把实测结果与仿真结果进行了对比，说明LES在室内气流仿真方面是一种很有前景的方法。

Liapunov—Schmidt method is one of the most important method in the bifurcation theory.

Liapunov—Schmidt方法是分叉理论的最重要方法之一。

Be courteous -- even when people are most discourteous to you .

要有礼貌──即使当別人对你最不礼貌的时候。