- artificial radio element
- 人工放射元素
English-Chinese geology dictionary (英汉地质大词典). 2013.
English-Chinese geology dictionary (英汉地质大词典). 2013.
radio-element — n. a natural or artificial radioactive element or isotope … Useful english dictionary
Antenna (radio) — Whip antenna on car … Wikipedia
Invention of radio — Great Radio Controversy redirects here. For the album by the band Tesla, see The Great Radio Controversy. Contents 1 Physics of wireless signalling 2 Theory of electromagnetism … Wikipedia
Mathematics of radio engineering — A complex valued function. The mathematics of radio engineering is a pleasant and very useful subject. This article is an attempt to provide a reasonably comprehensive summary of this almost limitless topic. While the ideas have historically… … Wikipedia
Rural Radio Network — The Rural Radio Network (RRN) was an interconnected group of six commercial FM radio stations spread across upstate New York and operated from Ithaca, NY the first all radio, no wireline network in the world. [ Pattern for FM Profit: Part 6… … Wikipedia
Metamaterial — Negative index metamaterial array configuration, which was constructed of copper split ring resonators and wires mounted on interlocking sheets of fiberglass circuit board. The total array consists of 3 by 20×20 unit cells with overall dimensions … Wikipedia
Tau Ceti — Starbox begin name=Tau Ceti Starbox image caption=Tau Ceti (highlighted center) in the southern part of the constellation Cetus. Starbox observe epoch=J2000 constell=Cetus ra=RA|01|44|04.0829cite web url=http://simbad3.u strasbg.fr/sim… … Wikipedia
name — n Name, designation, denomination, appellation, title, style mean the word or combination of words by which something is called and by means of which it can be distinguished or identified. Name is so general that it can be used of any such word… … New Dictionary of Synonyms
Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… … Universalium
technology, history of — Introduction the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both… … Universalium
literature — /lit euhr euh cheuhr, choor , li treuh /, n. 1. writings in which expression and form, in connection with ideas of permanent and universal interest, are characteristic or essential features, as poetry, novels, history, biography, and essays. 2.… … Universalium