- activity per unit mass
- Строительство: удельная массовая активность
Универсальный англо-русский словарь. Академик.ру. 2011.
Универсальный англо-русский словарь. Академик.ру. 2011.
activity — 1. In electroencephalography, the presence of neurogenic electrical energy. 2. In physical chemistry, an ideal concentration for which the law of mass action will apply perfectly; the ratio of the a. to the true concentr … Medical dictionary
specific activity — /spəˌsɪfɪk ækˈtɪvəti/ (say spuh.sifik ak tivuhtee) noun 1. Physics the activity per unit mass of a pure radioactive isotope. 2. Physics the activity of a radioactive isotope in a material per unit mass of that material. 3. Biochemistry the… …
mass production — the production or manufacture of goods in large quantities, esp. by machinery. [1915 20] * * * Application of the principles of specialization, division of labour, and standardization of parts to the manufacturing of goods on a large scale.… … Universalium
Specific activity — This article is about the specific activity of an enzyme. A completely different definition of specific activity is used in nuclear sciences and technologies, in which activity is the SI quantity related to the phenomenon of natural and… … Wikipedia
unit — 1. One; a single person or thing. 2. A standard of measure, weight, or any other quality, by multiplications or fractions of which a scale or system is formed. 3. A group of persons or things considered as a whole because of mutual activities or… … Medical dictionary
mass transit — a system of large scale public transportation in a given metropolitan area, typically comprising buses, subways, and elevated trains. Cf. rapid transit. * * * Transportation systems, usually publicly but sometimes privately owned and operated,… … Universalium
Mass — This article is about the scientific concept. For the substance of which all physical objects consist, see Matter. For other uses, see Mass (disambiguation). Classical mechanics … Wikipedia
Unit record equipment — Before the advent of electronic computers, data processing was performed using electromechanical devices called unit record equipment, electric accounting machines (EAM) or tabulating machines. Unit record machines were as ubiquitous in industry… … Wikipedia
SI derived unit — The International System of Units (SI) specifies a set of seven base units from which all other units of measurement are formed, by products of the powers of base units. These other units are called SI derived units, for example, the SI derived… … Wikipedia
specific activity — The number of activity units (whatever is appropriate) per unit of mass, volume or molarity. Perhaps most often encountered in the context of radiochemicals, the number of microcuries per micromole … Dictionary of molecular biology
Races of the Mass Effect universe — This article is about the fictional races found within the Mass Effect universe. These races are explored in the novels Mass Effect: Revelation and Mass Effect: Ascension, and the video games Mass Effect, Mass Effect Galaxy, and Mass Effect 2.… … Wikipedia