查询词典 constellation

At first,there are three kinds of satellite recon information flow models are built,they are focus,narrow bar scan and wide bar scan.And the examples of them are given according the parameters of "Starlite" recon satellite constellation of USA.Secondly,the information capacity of the recon-sat storage without satellite transmission network is simulated and computed,which illustrates satellite transmission network is necessary.Lastly,the transmission of satellite recon information through a satellite transmission network is simulated and some primary simulation conclusions are given.

首先建立聚束、窄条带扫描、宽条带扫描等三种模式的卫星侦察业务流量模型，并参考美国Starlite侦察卫星星座的指标参数进行了计算举例；其次仿真计算了无卫星传输网络时侦察卫星星载存储器的信息量状况，指出卫星传输网络的必要性；最后仿真卫星侦察信息在卫星传输网络下的传输情况，并给出初步的仿真结论。

Multicarrier modulation in data transmission is discussed in the fourth chapter. The performance of MCM and single tone modulation over twisted pairs is compared. Discrete multitone modulation is used in ADSL system. A new variable constellation TCM method is proposed, It can adapt to the subchannel capacity automatically. The simulation results prove that this method is quite effective.

第四章讨论了多载波调制技术在数据传输中的应用，针对市话信道的具体传输环境，比较了单载波调制与多载波调制的性能；针对ADSL传输的目标，采用离散多频音DMT技术，独立提出一种新的星座图变化的格状码方案VCTCM，能动态地适应不同子信道的传输能力，给出的计算机仿真结果表明该方案有较好的效果。

Astronomers John Carr of the Naval Research Laboratory in Washington, D.C., and Joan Najita of the National Optical Astronomy Observatory in Tucson, Arizona, used Spitzer to tease out the signals revealing the molecular composition of the gas in the disk surrounding AA Tauri, a star less than a million years old located in the constellation Taurus.

华盛顿哥伦比亚特区海军研究实验室的天文学家约翰·卡尔，和亚利桑那州图森国家光学天文台的天文学家琼·纳吉塔，利用斯必泽太空望远镜挑选出能够揭示恒星" AA 托莱"周围圆盘中气体分子构成情况的信号。恒星" AA 托莱"位于金牛座，诞生于不到一百万年前。

ARA: a constellation in the Southern Hemisphere near the constellations Norma and Telescopium.

矩尺座南半球的星座，位于豺狼座和天坛星座附近的银河中

ESO 99-4 lies in a rich field of foreground stars, in the constellation of Triangulum Australe, the Southern Triangle, about 400 million light-years away.

ESO 99-4位于南三角座一片有大量前景星的区域，大约有4亿光年远。

A constellation in the Southern Hemisphere near Musca and Triangulum Australe.

圆规星：座位于南半球在苍蝇座和南三角座附近的一个星座。

ESO 69-6 is located in the constellation of Triangulum Australe, the Southern Triangle, about 650 million light-years away from Earth.

ESO 69-6位于南三角座，离地球约6.5亿光年远。

By the way, there's a second galaxy — M33, in the constellation Triangulum – that some experienced observers have glimpsed with the unaided eye, under perfect sky conditions.

顺便说一下，还有第二个星系- M33，位于三角座-是一些有经验的观察者在完美的天空状况下用肉眼捕捉到的。

The Tropic of Capricorn originates from this constellation, which marked the southern limit of the ecliptic in ancient times.

热带的摩羯座来源于此星座，南方的古代由黄道。

With the increase of the code rate , the production distance between the constellation of the unitary group code decreases rapidly and deteriorates the performance of the system.

随着码率的不断增加，酉空时码群中的各个星座点之间的乘积距离会变得越来越小，从而导致性能恶化。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！