5g通信英语作文【一】
什么叫通信卫星呢?
通信卫星又称同步卫星。它的特点是运转方向和绕地球一周的时间都与地球自转方向和时间相同。从地面上看去，它像和地球赛跑的运动员，速度与地球的自转“旗鼓相当”。其实，它在远离地球的轨道上运行，速度比起地球的自转速度来可快多了。
通信卫星的“年龄”并不大。但是，从20世纪60年代至今已更新换代3次了，现在正以越来越快的速度向前飞速发展。目前，许多国家都在进行通信卫星的研究，我国已于今年成功地发射了试验性通信卫星。这标志着我国科学技术的又一大进步。
1984年的暑假里，在美国洛杉矶举行了举世瞩目的第二十三届奥运会。在比赛的那几天，我们每天都能在电视中看到当天比赛的情况。是谁把比赛的实况从远在大洋彼岸的洛杉矶传到这儿来的呢?这就是通信卫星的功劳。通信卫星的作用大得很。它不仅能使人们及时看到世界各地发生的重大事件，还能让各国人民通过电话互相增进了解。过去，电话通讯是靠电话线，而电视信号的传播则必须通过徽波中继站进行。这在不大的范围内还行得通，如果要翻山过海，就不得不花费巨大的人力、物力。通信卫星的诞生，像是给人们长上了“千里眼”、“顺风耳”，使这种状况有了很大的.改观。
一颗先进的通信卫星，可以通两路彩色电视，上百万路的电话；它的工程范围也很大。只要有了通信卫星，按一定距离运行在赤道上空的轨道上，就可以形成一个统一的全球通讯网，真可谓神通广大。
卫星为什么能够进人太空呢?那是因为有运载火箭给与了它们一定的高度和速度。通信卫星对运行轨道有严格的要求。火箭只有将卫星送人离地面约35 800公里的同步轨道内，通信卫星才能“老老实实”地呆在地球某一地区的上空。由此可见，通信卫星的发射也是一门很复杂的科学技术。
通信卫星的前景是十分广阔的。不久的将来，通信事业将更加发达。那时，通信卫星的技术也自然会逐步提高。它将可以通五六路彩色电视，上千万路电话。不仅如此，通信卫星还将应用到其他各个领域，如搜寻失踪飞机、船只等等。总之，通信卫星——这个卫星家族中的一员，将显示出越来越大的神通，为各国人民作出更大的贡献。
5g通信英语作文【二】
When I was a freshman in college I watched the film Gua Sha Treatment for the first time, now I am a junior student and I come back to review the movie from a multicultural aspect, I have many different feelings after watching the film again.
At the beginning of the film, XuDatong is given an award and later he delivers a speech. What makes me impressed most is in his speech he says “one day I will become one of you, a truly successful American, today this award proved that America is a true land of opportunity and I am the living proof of that.” At that moment Xu thinks he has realized his American Dream totally with his lovingly wife and adorable son. However, I think it is ironical that to make a speech like that and I assume it is made on purpose to hind a clue for the story\'s development. How many non—American people have such a beautiful American dream? One of my classmate studies in American now and before he went aboard he told me his American dream is he can stand at the top of the New York. To be honest, I also dream that one day I can get the Green Card living there happily and successfully maybe working at the Wall Street. When Xu gets the award he thinks he entirely melted in the melting pot neglecting the multicultural obstruct, later the plot goes against the way he thinks. And later Quinlan asked Xu\'why you be the scapegoat of your father?\' Xu answers \'because he is Chinese.\' Then maybe Xu knows that there is always a wide gap between Chinese and American cultures.
The second scene is Xu hit his son Denis because Denis hit the son of xu\'s boss, at the middle of the film xu tells his boss that he hit his own son is only to show his respect to his boss John Quinlan, that time Quinlan feels puzzled “what a Chinese logic”,yes, American can never understand such a logic full of Chinese characteristic, because they respect everyone including the children, they won\'t beat a child to please the boss, and there is no such a conception of degree between employee and employer, they feel everyone is equal, which is quite different from china.
Connected to the second scene, the third difference I want to analyze is the care for the children. In America, people pay more attention to the right of children which can be seen from the law—leaving children alone at home is illegal, while in China it is so common that almost everyone may experience such loneliness. And Children Welfare Agency does work in America which shows the importance Americans attach to children\'s right. What\'s more, I remember a line \'No one won the case, especially the child.\' In my opinion, it also manifests the universal concern from the American public to the children.
The fourth aspect is following the procedure, in the film, more than there times, the people focus on the rule, the law, the procedure. At the Christmas Eve Xu wants to return back to his home pretending as a Santa Claus, what a pity, the security recognizes him and persuades \'you are always a good tenement, never causes troubles for me.\' And another scene is at the end of the film , the judge says \'I have to follow the procedure.\' However, in China people always have to ask for a favor to do something, and later you have to pay back the favor,for myself, I prefer the American style, strict to the procedure.
The fifth and the last point is the humors, Quinlan says \'you can\'t fall, your health security is the company paid.\' \'Datong, welcome home, maybe next time, you can come from the front door.\' \'dady, why you come from the window\' \' because we don\'t have a chimney.\' I really adore this distinguished American humor, especially in dangerous situations, which is quite rare in China.
That\'s my whole reaction to Gua Sha Treatment.
5g通信英语作文【三】
Father's Day
Yesterday was Father's Day. I had planned to give my father a present. But I didn't remember it until in the morning.It was too late to post a card to him. So I decided to buy something. When I was in the department store. I found it was not easy for me to choose something right for him. Suddenly I
got an idea. I ran home and opened my computer. I made a beautiful card and mailed him through the Internet. then I began to make supper. When father came home, he was very glad to find a big meal on the table. then I asked him to check his e-mail. He was amazed to find a beautiful card in his e-mail-box.
What a wonderful surprise!
5g通信英语作文【四】
Dear Dad,
Long time no see, I do miss you. Well, let me tell you something about my life here.To tell the truth, i live a normal life just as anywhere i can live.(我过着一个在任何地方都普通的生活 My life is revolved on work and work.(我的生活除了学习还是学习Frankly,i feel tired sometimes(老实说，我有时候觉得很累.But i see, studying is the whole life to students like me.(但是我知道，学习是像我这样的学生的全部 So no matter how difficult, i will do my utmost .所以不管多艰难，我都会尽自己最大的努力。
Best wishes for you .
5g通信英语作文【五】
This is my first week in ** Senior Middle School.Everything here is new for me.Our school is an old school but it`s very beautiful.I have 50 new classmates in my class.They`re all very excellent, I think, and I felt a little sad.Because I`m too common.But come to think of it,it`s a very good thing.I believe I can also be very excellent if I study with such excellent classmates.I didn`t know why Ms *** chose me to be the committee of study.But I know it`s a good chance for me to raise my ability.All I can do is do my best in the future.I am sure that Ms *** and my classmates can help me when I do something wrong. Because they`re all very kind.It`s a pleasure to work and study with them.I`m really very happy.I`m not an outstanding student in this class,but I can do the same thing like others.I believe I won`t make anyone disappointed.
5g通信英语作文【六】
Dear Dad，
Today is fathers day， for so many years Ive been seekig a way to express my heartfelt thanks for all you have done for me. Here comes it!
Thank you for always being there sharing my life when I need you most. Whenever I encounter difficulties， I never feel alone and vulnerable， because you will keep me on the right path. Im blessed to have you.
Thank you for offering me education and teaching me how to be a man. You always inspire me not by words， but by what you have done! Your efforts in the work， your loyalty to your friends， your responsibility for the family and your persistence in the life have already set me good examples in my own life.
Thank you for always appreciating my work， no matter how tiny it is! You have made me realize that its capacity not scores that really counts.
Dad， I love you and I will love you forever!
Yours beloved，
Li Ming
5g通信英语作文【七】
RTL8019AS 网络接口芯片是台湾 Realtek 公司的代表性产品之一，该芯片基于 ISA 总线结构，性能稳定且价格低廉，在工业企业领域有非常广泛的应用[ 1 ]。
1.1 RTL8019AS接口芯片的主要特性
RTL8019AS芯片主要优点有：
一是支持热插拔(即插即用的动态检测;
二是完全兼容当前主流的NE2000 模式并可在8 位与 16 位两种模式下工作;
三是有跳线与非跳线两种模式可供选择;
四是支持全双工通信模式，双工通信时信道的传输速率可达到10Mbps;
五是内置数据预取功能;
六是内置 16K 字节的闪存;
七是支持 8/16两种前端总线工作模式，内置8 个中断申请线，同时有16 个I/O地址可供选择。
1.2 51单片机与RTL8019AS连接实现网络通信的电路设计
1.2.1 RTL8019AS 与 93C46 接口电路
93C46接口电路内部存储容量为1Kbits，是四线串行接口EEPROM。RTL 8019 AS芯片在上电或者初始化复位时，首先要从该芯片中读取预设的配置信息才能完成初始化。 93C46 内部存储器的前三个地址空间用于存放 RTL8019AS芯片的上电初始化信息;后5个地址空间用于记录本机地址;0AH-11H 的地址空间分配给制造商存储产品的信息;
12H～7FH 的地址空间用于记录即插即用信息。RTL 8019 AS 的EECS引脚连接93C46的CS引脚，EESK引脚连接SK引脚，EEDI引脚连接DI，EEDO引脚连接DO引脚，即由EECS 提供片选信号，EESK 提供时钟信号，EEDI 与 EEDO 定义为串行数据I/O通道。
1.2.2 RTL8019AS 与 SST89E564RD 接口电路的.硬件连接
SST 系列单片机是美国 SST公司生产的一种中高端51系列单片机，SST89 E564RD 单片机是其SST系列单片机中的一个型号。将RTL8019AS 的SD0-SD7 引脚与SST89E564RD 的P0.0-P0.7引脚相连，相连后的引脚通过锁存器与A0-A7引脚相接，同时将74HC573的A0-A5引脚与 RTL 8019AS 的SA0-SA5引脚相接，将SST89E564RD的P0口用作D/A端口。
此外，SST89E564RD的 P2.0-P2.6 引脚与 静态存储芯片TMS62256 的高7位地址线引脚相接，组合成访问 TMS的15位地址总线。将SST 89E564 RD的SMEMRB 引脚接+5V，同时将IOCHDRY引脚悬空，JP 引脚为跳线模式，IOCS 16B引脚接地，使 RTL8019AS 工作在 8 位模式[ 2 ]。
1.3 网络接口电路的地址定义
RTL8019AS中 SA0-SA19 的连接方式如下：SA5-SA7以及SA10-SA19 接 GND，SA8-SA9 接+5V电压，SA0-SA4 接74HC573的A0-A5引脚。SST 单片机可以通过 P0.0-P0.4来选中RTL8019AS 的 32 个I/O端口并相应地对其进行R / W操作。此外，将RTL8019AS 的IORB 和 IOWB 引脚分别与SST89E564RD单片机的 RD 和 WR 相连作为R/W选通信号。
然后在 93C46 接口电路的低位00H 单元中写入 00H，将IOS0-IOS3 赋值为 0，这样就可将RTL8019AS 选择 I/O 端口的基本寻址地址定义为 300H，地 址 空 间 就为 00300H-0031FH。
