cylinder
Significado: A three-dimensional shape with two parallel circular bases connected by a curved surface at a fixed distance from a central axis.
In mathematics, the volume of a cylinder is πr²h, where r is the radius and h is the height. Cylinders are ubiquitous in engineering and everyday life, from engine cylinders and gas canisters to tins of food. The phrase 'firing on all cylinders' means operating at full capacity, derived from internal combustion engines.
Ejemplos
- The volume of the cylinder was calculated using the formula pi r squared h. 该圆柱体的体积使用公式πr²h计算。El volumen del cilindro se calculó mediante la fórmula pi r al cuadrado por h.その円柱の体積はπr²hの公式を使って計算された。그 원기둥의 부피는 πr²h 공식을 사용하여 계산되었다.
- The engine has a four-cylinder configuration for improved fuel efficiency. 该发动机采用四缸配置以提高燃油效率。El motor tiene una configuración de cuatro cilindros para mejorar la eficiencia del combustible.そのエンジンは燃料効率向上のため四気筒構成を採用している。그 엔진은 연비 향상을 위해 4기통 구성을 채택하고 있다.
- She stacked the cylindrical tins neatly in the cupboard, each one a perfect cylinder. 她将圆柱形罐头整齐地码放在橱柜中,每个都是完美的圆柱体。Apiló las latas cilíndricas ordenadamente en el armario; cada una, un cilindro perfecto.彼女は円筒形の缶を食器棚にきれいに積み重ねた。どれも完璧な円柱であった。그녀는 원통형 캔을 찬장에 깔끔하게 쌓았는데, 각각이 완벽한 원기둥이었다.
Pronunciación
Guía de uso
Contexto: academic, scientific, professional
Tono: neutral
Origen e historia
From Greek kylindros (roller), from kylindrein (to roll). Entered English in the 16th century via Latin cylindrus.
Contexto cultural
Era: Modern
Generation: All ages
Social background: Universal
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