- thallium frequency standard
- таллиевый эталон частоты
The New English-Russian Dictionary of Radio-electronics. F.V Lisovsky . 2005.
The New English-Russian Dictionary of Radio-electronics. F.V Lisovsky . 2005.
Atomic clock — Nuclear clock redirects here. For the clock as a measure for risk of catastrophic destruction, see Doomsday Clock. For a clock updated by radio signals (commonly but inaccurately called an atomic clock ), see Radio clock. For the album by Zion I … Wikipedia
Caesium — xenon ← caesium → barium Rb ↑ Cs ↓ Fr … Wikipedia
Rubidium — krypton ← rubidium → strontium K ↑ Rb ↓ … Wikipedia
Metal ions in aqueous solution — A metal ion in aqueous solution is a cation, dissolved in water, of chemical formula [M(H2O)n]z+. The solvation number, n, determined by a variety of experimental methods is 4 for Li+ and Be2+ and 6 for elements in rows 3 and 4 of the periodic… … Wikipedia
diagnosis — /duy euhg noh sis/, n., pl. diagnoses / seez/. 1. Med. a. the process of determining by examination the nature and circumstances of a diseased condition. b. the decision reached from such an examination. Abbr.: Dx 2. Biol. scientific… … Universalium
spectroscopy — spectroscopist /spek tros keuh pist/, n. /spek tros keuh pee, spek treuh skoh pee/, n. the science that deals with the use of the spectroscope and with spectrum analysis. [1865 70; SPECTRO + SCOPY] * * * Branch of analysis devoted to identifying… … Universalium
Hydroxide — Lewis structure of the hydroxide ion showing three lone pairs on the oxygen atom … Wikipedia
Medical imaging — This article is about imaging techniques and modalities for the human body. For imaging of animals in research, see Preclinical imaging. Medical imaging Diagnostics A CT scan image showing a ruptured abdominal aortic aneurysm … Wikipedia
radiation measurement — ▪ technology Introduction technique for detecting the intensity and characteristics of ionizing radiation, such as alpha, beta, and gamma rays or neutrons, for the purpose of measurement. The term ionizing radiation refers to those… … Universalium
Metalloid — 13 14 15 16 17 2 B Boron … Wikipedia
Laser — For other uses, see Laser (disambiguation). United States Air Force laser experiment … Wikipedia