- cathode ray welding
- 电子线束焊接
English-Chinese metallurgy dictionary. 2014.
English-Chinese metallurgy dictionary. 2014.
Hot cathode — is also a name for a hot filament ionization gauge, a vacuum measuring device.In vacuum tubes, a hot cathode is a cathode electrode which emits electrons due to thermionic emission. ( Cf. cold cathodes, where field emission is used and which do… … Wikipedia
Electron — For other uses, see Electron (disambiguation). Electron Experiments with a Crookes tube first demonstrated the particle nature of electrons. In this illustration, the profile of the cross shaped target is projected against the tube face at right… … Wikipedia
Hassan Kamel Al-Sabbah — (Camille A.Sabbah) (August 16, 1895 March 31, 1935) was an electrical and electronics research engineer, mathematician and inventor. He was born in Nabatieh, Lebanon. He studied at the American University of Beirut. He taught mathematics at… … Wikipedia
Allen B. DuMont — Allen Balcom DuMont Born January 29, 1901(1901 01 29) Brooklyn, New York City, New York, U.S. Died 14 November 1965 … Wikipedia
Électron — Traduction à relire Electron → … Wikipédia en Français
electronics — /i lek tron iks, ee lek /, n. (used with a sing. v.) the science dealing with the development and application of devices and systems involving the flow of electrons in a vacuum, in gaseous media, and in semiconductors. [1905 10; see ELECTRONIC,… … Universalium
Chance Brothers — Chance s Glassworks, Spon Lane, Smethwick Chance Brothers and Company was a glassworks originally based in Spon Lane, Smethwick, West Midlands (formerly in Staffordshire), in England. It was a leading glass manufacturer and a pioneer of British… … Wikipedia
Vacuum — This article is about empty physical space or the absence of matter. For other uses, see Vacuum (disambiguation). Free space redirects here. For other uses, see Free space (disambiguation). Pump to demonstrate vacuum In everyday usage, vacuum is… … Wikipedia
machine tool — machine tooled, adj. a power operated machine, as a lathe, used for general cutting and shaping of metal and other substances. [1860 65] * * * Stationary, power driven machine used to cut, shape, or form materials such as metal and wood. Machine… … Universalium
Tungsten — (pronEng|ˈtʌŋstən), also known as wolfram (IPA|/ˈwʊlfrəm/), is a chemical element that has the symbol W and atomic number 74.A steel gray metal, tungsten is found in several ores, including wolframite and scheelite. It is remarkable for its… … Wikipedia
Neon sign — … Wikipedia