cylinder

简明释义

英[ˈsɪlɪndə(r)]美[ˈsɪlɪndər]

n. 圆柱体，圆筒；汽缸；高压钢瓶；印刷机滚筒；（枪的）旋转弹膛；筒形石印；柱面

复 数 c y l i n d e r s

英英释义

单词用法

同义词

反义词

例句

1.You will see a green cylinder with a clock next to it while you create this array.

在创建此阵列时，您会看到一个绿色的圆筒，旁边还有一个时钟。

2.This large gear turns the small one to rotate the cylinder.

这个大齿轮带动小齿轮使滚筒旋转。

3.The final step came when steam was introduced into the cylinder to drive the piston backward as well as forward, thereby increasing the speed of the engine and cutting its fuel consumption.

最后一步是将蒸汽引入气缸，使得活塞前后推动，从而提高了发动机的速度，降低了燃料消耗。

4.And I put a cylinder with one bar pressure on top.

在水面上用圆柱活塞加一个大气压的气压。

5.Somebody had made three separate recordings on the cylinder.

有人曾经在圆筒上进行过三次录音。

6.Cylinders six and eight came up weak on a cylinder balance.

做汽缸平衡时，发现第六缸和第八缸偏弱。

7.The cylinder is cooled by a jet of water.

气缸可用喷水冷却。

8.He measured the diameter of the cylinder 圆柱 before cutting it.

他在切割之前测量了圆柱的直径。

9.The engine's power comes from the four-stroke cylinder 气缸 design.

发动机的动力来自于四冲程气缸设计。

10.The gas is stored in a high-pressure cylinder 气瓶 for safety.

气体储存在高压气瓶中以确保安全。

11.The hydraulic system uses a cylinder 液压缸 to lift heavy loads.

液压系统使用液压缸来提升重物。

12.To calculate the volume of a cylinder 圆柱体, use the formula V = πr²h.

要计算一个圆柱体的体积，使用公式V = πr²h。

作文

In the realm of geometry, the concept of a cylinder (圆柱体) plays a significant role. A cylinder is defined as a three-dimensional shape that has two parallel bases connected by a curved surface at a fixed distance from the center. This unique structure can be observed in various objects around us, such as cans, pipes, and even some types of glasses. Understanding the properties of a cylinder is essential for students and professionals alike, especially in fields like engineering, architecture, and design.The mathematical representation of a cylinder begins with its dimensions: the radius of the base (r) and the height (h). The volume (V) of a cylinder can be calculated using the formula V = πr²h, where π (pi) is approximately 3.14159. This formula indicates how much space is contained within the cylinder. For instance, if we have a cylinder with a radius of 3 cm and a height of 5 cm, we can calculate its volume as follows: V = π(3)²(5) = 45π cubic centimeters. This calculation not only helps in understanding the physical space a cylinder occupies but also has practical applications in various industries.Moreover, the surface area of a cylinder is another critical aspect to consider. The total surface area (A) can be calculated with the formula A = 2πrh + 2πr². The first part of the equation, 2πrh, accounts for the lateral surface area, while the second part, 2πr², represents the area of the two circular bases. Knowing the surface area is particularly important in manufacturing processes, where materials need to be cut or shaped to fit a specific design involving a cylinder.In real-world applications, the cylinder shape is often utilized due to its structural strength and efficiency. For example, in the construction industry, columns are often designed as cylinders to support heavy loads. The ability of a cylinder to distribute weight evenly makes it an ideal choice for supporting structures. Additionally, in the field of fluid dynamics, pipes are typically cylindrical because the cylinder shape allows for smooth fluid flow, reducing turbulence and increasing efficiency.Furthermore, the cylinder is not just limited to practical applications; it also appears in art and design. Sculptors and architects often incorporate cylindrical forms into their works to create visually appealing structures. The simplicity and elegance of a cylinder can be seen in modern buildings, sculptures, and even furniture design.In conclusion, the cylinder (圆柱体) is a fundamental geometric shape that offers a wealth of knowledge and application across various disciplines. Its unique properties, including volume and surface area, are crucial for practical calculations in engineering and manufacturing. Additionally, the aesthetic appeal of a cylinder makes it a popular choice in art and design. By understanding the significance of a cylinder, we can appreciate the beauty and functionality it brings to our everyday lives.

在几何学的领域中，cylinder（圆柱体）的概念发挥着重要作用。cylinder被定义为一种三维形状，具有两个平行的底面，通过固定距离的曲面相连。这种独特的结构可以在我们周围的各种物体中观察到，例如罐子、管道，甚至某些类型的杯子。理解cylinder的属性对学生和专业人士来说都至关重要，特别是在工程、建筑和设计等领域。cylinder的数学表示始于其尺寸：底面的半径（r）和高度（h）。cylinder的体积（V）可以通过公式V = πr²h来计算，其中π（pi）约为3.14159。这个公式表明了cylinder所包含的空间量。例如，如果我们有一个半径为3厘米、高度为5厘米的cylinder，我们可以如下计算其体积：V = π(3)²(5) = 45π立方厘米。这个计算不仅有助于理解cylinder所占据的物理空间，还有助于在各个行业中的实际应用。此外，cylinder的表面积是另一个重要的方面。总表面积（A）可以通过公式A = 2πrh + 2πr²来计算。方程的第一部分2πrh代表侧表面积，而第二部分2πr²则表示两个圆形底面的面积。了解表面积在制造过程中尤为重要，因为材料需要被切割或塑形以适应涉及cylinder的特定设计。在现实世界的应用中，由于其结构强度和效率，cylinder形状通常被利用。例如，在建筑行业，柱子常常被设计成cylinder形，以支撑重物。cylinder能够均匀分配重量，使其成为支撑结构的理想选择。此外，在流体动力学领域，管道通常是圆柱形的，因为cylinder形状允许流体平稳流动，减少湍流并提高效率。此外，cylinder不仅限于实际应用；它也出现在艺术和设计中。雕塑家和建筑师经常将cylinder形状融入他们的作品中，以创建视觉上吸引人的结构。cylinder的简单性和优雅性可以在现代建筑、雕塑甚至家具设计中看到。总之，cylinder（圆柱体）是一个基本的几何形状，在各个学科中提供了丰富的知识和应用。它的独特属性，包括体积和表面积，对于工程和制造中的实际计算至关重要。此外，cylinder的美学吸引力使其成为艺术和设计中的热门选择。通过理解cylinder的重要性，我们可以欣赏它为我们日常生活带来的美和功能。