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・ VoluMill
・ Volumizer
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・ Volumnia (wife of Coriolanus)
・ Volucella inflata
・ Volucella pellucens
・ Volucella zonaria
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Volume
・ Volume (album)
・ Volume (bibliography)
・ Volume (compression)
・ Volume (computing)
・ Volume (disambiguation)
・ Volume (finance)
・ Volume (magazine)
・ Volume (thermodynamics)
・ Volume (video game)
・ Volume 1 (Billy Bragg album)
・ Volume 1 (CKY album)
・ Volume 1 (Fabrizio De André album)
・ Volume 1 (Future Boy album)
・ Volume 1 (Mushroomhead video album)


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Volume : ウィキペディア英語版
Volume

Volume is the quantity of three-dimensional space enclosed by some closed boundary, for example, the space that a substance (solid, liquid, gas, or plasma) or shape occupies or contains.〔
(【引用サイトリンク】title= Your Dictionary entry for "volume" )

Volume is often quantified numerically using the SI derived unit, the cubic metre. The volume of a container is generally understood to be the capacity of the container, i. e. the amount of fluid (gas or liquid) that the container could hold, rather than the amount of space the container itself displaces.
Three dimensional mathematical shapes are also assigned volumes. Volumes of some simple shapes, such as regular, straight-edged, and circular shapes can be easily calculated using arithmetic formulas. Volumes of a complicated shape can be calculated by integral calculus if a formula exists for the shape's boundary. Where a variance in shape and volume occurs, such as those that exist between different human beings, these can be calculated using three-dimensional techniques such as the Body Volume Index. One-dimensional figures (such as lines) and two-dimensional shapes (such as squares) are assigned zero volume in the three-dimensional space.
The volume of a solid (whether regularly or irregularly shaped) can be determined by fluid displacement. Displacement of liquid can also be used to determine the volume of a gas. The combined volume of two substances is usually greater than the volume of one of the substances. However, sometimes one substance dissolves in the other and the combined volume is not additive.〔One litre of sugar (about 970 grams) can dissolve in 0.6 litres of hot water, producing a total volume of less than one litre. (【引用サイトリンク】title=Solubility )
In ''differential geometry'', volume is expressed by means of the volume form, and is an important global Riemannian invariant.
In ''thermodynamics'', volume is a fundamental parameter, and is a conjugate variable to pressure.
==Units==

Any unit of length gives a corresponding unit of volume, namely the volume of a cube whose side has the given length. For example, a cubic centimetre (cm3) would be the volume of a cube whose sides are one centimetre (1 cm) in length.
In the International System of Units (SI), the standard unit of volume is the cubic metre (m3). The metric system also includes the litre (L) as a unit of volume, where one litre is the volume of a 10-centimetre cube. Thus
:1 litre = (10 cm)3 = 1000 cubic centimetres = 0.001 cubic metres,
so
:1 cubic metre = 1000 litres.
Small amounts of liquid are often measured in millilitres, where
:1 millilitre = 0.001 litres = 1 cubic centimetre.
Various other traditional units of volume are also in use, including the cubic inch, the cubic foot, the cubic mile, the teaspoon, the tablespoon, the fluid ounce, the fluid dram, the gill, the pint, the quart, the gallon, the minim, the barrel, the cord, the peck, the bushel, and the hogshead.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Volume」の詳細全文を読む



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