英日字典: r
The r has 6 Senses.
- r, roentgen
- レントゲン
- a unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air
- 放射線被曝の単位
- gas constant, r, universal gas constant
- 気体定数
- (physics) the universal constant in the gas equation: pressure times volume = R times temperature; equal to 8.3143 joules per kelvin per mole
- 気体の方程式における普遍的な定数:圧力かける体積 = Rかける温度
- r
- the 18th letter of the Roman alphabet
- ローマ字の18番目の文字
- r, radius
- 半径, ラジウス, r
- the length of a line segment between the center and circumference of a circle or sphere
- 円または球の中心と円周の間の線分の長さ
- radius
- 半径, r
- a straight line from the center to the perimeter of a circle (or from the center to the surface of a sphere)
- 円の中心から円周まで(または球の中心から球面まで)の直線
- r, radius
- 半径, ラジウス, r
- the length of a line segment between the center and circumference of a circle or sphere
- 円または球の中心と円周の間の線分の長さ
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