What is the main function of a satellite? A. To take pictures. B. To send signals. C. To explore space. D. To carry astronauts. 相关知识点: 试题来源: 解析 B。本题考查科普知识,卫星的主要功能是发送信号。选项 A 拍照只是部分卫星的功能之一;选项 C 探索太空不是卫星的主要功能;选项 D 搭载...
What is the main function of a satellite? A. to send messages B. to take pictures C. to provide navigation D. all of the above 相关知识点: 试题来源: 解析 D。本题考查特殊疑问句及卫星的功能。卫星可以发送消息、拍照以及提供导航等多种功能。
It uses three transponders (3A.4A.5A) of APT-1 to broadcast educational programs. In order to make the most of the satellite transponders, CETV is developing the resources and multiplex applications of satellite transponders, while broadcasting satellite TV programs.The three subcarriers are ...
1. 北斗卫星导航系统（以下简称“北斗系统”）是中国着眼于国家安全和经济社会发展需要，自主建设、独立运行的卫星导航系统。The BeiDou Navigation Satellite System (BDS) is a project built and operated by China as a component of the country’s national security and economic and social development strategy....
Furthermore, this study also removes the section-based velocity to have zero net transport, which will cause slight differences in the streamfunction (mainly the surface of the streamfunction being the volume transport of the section (~1 Sv) and not 0). CMIP6 and climate sensitivity It is...
of the World Wide Web and Internet also use satellites.Many of our TV programs come to us through satellites.Airplane pilots also sometimes use a satellite to help them find their exact location. We use satellites to send television pictures from one part of the world to another.They are ...
indefinite integral- the set of functions F(x) + C, where C is any real number, such that F(x) is the integral of f(x) definite integral- the integral of a function over a definite interval Adj.1.integral- existing as an essential constituent or characteristic; "the Ptolemaic system ...
of harmonized communication and sensing (HCS). 5.5G base stations will adopt integrated air interface and hardware design; share software and hardware resources such as waveforms, frequency bands, antennas, and systems; and intelligently collaborate with each other, allowing them to function like ...
"Auroras offer a window into the Earth's magnetosphere, providing essential data that enhance our comprehension of Earth's space environment. This knowledge is crucial for fields like satellite deployment and aerospace communication." He likened auroras to the "rain and snow" of Earth's high-latit...
What is the function of a sail? A. Bringing the satellite to atmosphere to burn. B. Keeping trash traveling along its own orbit. C. Taking the satellite away from atmosphere. D. Removing space trash out of the capsule. E. I.说明文 相关知识点: ...