concave
简明释义
英[kɒnˈkeɪv]美[kɑːnˈkeɪv;kənˈkeɪv]
adj. 凹的,凹面的
n. 凹面
v. 使变凹形
第 三 人 称 单 数 c o n c a v e s
现 在 分 词 c o n c a v i n g
过 去 式 c o n c a v e d
过 去 分 词 c o n c a v e d
比 较 级 m o r e c o n c a v e
最 高 级 m o s t c o n c a v e
英英释义
向内弯曲,类似于碗的内部。 | |
具有凹陷或向内圆的表面。 |
单词用法
n. 凹透镜 | |
凹面,内弧面 |
同义词
凹的 | 这个碗的表面是凹的。 | ||
凹陷的 | 地面中间是凹陷的。 | ||
凹进去的 | 这个洞穴有一个凹进去的入口。 |
反义词
凸面 | 这个透镜是凸面的,能够有效地聚焦光线。 | ||
平面 | A flat surface is necessary for the construction of the foundation. | 建筑基础需要一个平坦的表面。 |
例句
1.Stop: slightly defined, as a transition from the convex skull region to the slightly concave foreface.
停止:轻微的定义,作为一个地区过渡到凸头骨稍凹脸。
2.The concave shape behind the spoon head can reduce the pressure to fingers during peeling.
勺柄前部的厚度凹陷可以有效减缓扒皮过程中手部的压力。
3.It's a 15-minute travellator ride above a huge, immersive, concave screen. You feel you're flying over endless desertscapes.
那是一段15分钟的影片,巨大的银幕令人有如身历其境,仿佛在一望无际的沙漠中飞行。
4.At the core of Wright's system was a standardized 4x12x24-inch concrete or glass block with concave edges.
Wright系统的核是一个标准化的4x12 x 24英寸的带凹面的混凝土或玻璃砖块。
5.It's a 15-minute travellator ride above a huge, immersive, concave screen. You feel you're flying over endless desertscapes.
那是一段15分钟的影片,巨大的银幕令人有如身历其境,仿佛在一望无际的沙漠中飞行。
6.Concave key surfaces add to the typing comfort.
下凹的按键表面增加了打字的舒适度。
7.After achieving the desired shape, I cast my model in plaster to create a concave mould.
在获得我想要的形状之后,我把我的模型上了石膏,从而创造一个凹面的模具。
8.The upper line is slightly concave, an almost exclusive trait of the Argentinean Dogo.
上面一行是稍凹,一个几乎完全阿根廷杜高的特点。
9.A concave 凹面 lens can converge light rays to a focal point.
concave 凹面 镜片可以将光线聚焦到一个焦点上。
10.The mirror has a concave 凹面 that helps to magnify the image.
这个镜子有一个concave 凹面,可以放大图像。
11.In geometry, a concave 凹形 polygon has at least one interior angle greater than 180 degrees.
在几何学中,concave 凹形 多边形至少有一个内角大于180度。
12.The concave 凹陷 shape of the bowl allows it to hold liquids without spilling.
碗的concave 凹陷 形状使其能够盛装液体而不溢出。
13.The satellite dish is designed with a concave 凹形 surface to collect signals more effectively.
卫星天线的设计采用了concave 凹形 表面,以更有效地收集信号。
作文
In the world of geometry, shapes play a crucial role in understanding the physical world around us. One such shape that often comes up in various fields, including architecture, design, and physics, is the concave shape. A concave surface is defined as one that curves inward, resembling the interior of a bowl or a cave. This unique characteristic of concave surfaces allows them to have distinct properties that can be utilized in numerous applications.For instance, in architecture, concave structures can create stunning visual effects and enhance acoustics in concert halls. The concave shape can help focus sound waves towards a particular point, making it an essential element in designing spaces where sound quality is paramount. The Sydney Opera House, with its iconic sails, features concave forms that not only contribute to its aesthetic appeal but also to its functionality as a performance venue.Moreover, in the field of optics, concave lenses are widely used in various devices such as glasses, microscopes, and telescopes. A concave lens is thinner at the center than at the edges, causing light rays to diverge when they pass through it. This property makes concave lenses ideal for correcting nearsightedness, allowing individuals to see distant objects more clearly. The scientific principles behind concave lenses exemplify how understanding shapes can lead to practical solutions in everyday life.In addition to their functional applications, concave shapes also appear frequently in art and design. Artists often use concave forms to create depth and perspective in their work. The interplay of light and shadow on concave surfaces can evoke emotions and draw viewers into the piece. For example, sculptures that incorporate concave elements can create a sense of movement and fluidity, engaging the audience’s imagination.Furthermore, the concept of concave is not limited to physical shapes. In mathematics, the term concave is used to describe functions that have a specific curvature. A concave function is one where a line segment connecting any two points on the graph of the function lies below the graph itself. This property has significant implications in economics and optimization problems, as it relates to diminishing returns and risk assessment.In conclusion, the term concave encompasses a wide range of meanings and applications across various disciplines. From enhancing architectural acoustics to correcting vision and inspiring artistic expression, concave shapes are integral to both the natural and designed environments. By studying the properties and uses of concave surfaces, we gain a deeper appreciation for the complexity and beauty of shapes in our world. Understanding how to apply the concept of concave can lead to innovative solutions and creative expressions, making it a vital aspect of both science and art.
在几何学的世界中,形状在理解我们周围的物理世界中起着至关重要的作用。一个经常在建筑、设计和物理等各个领域出现的形状是凹面形状。凹面表面被定义为向内弯曲,类似于碗或洞穴的内部。这种凹面表面的独特特性使它们具有不同的属性,可以在许多应用中加以利用。例如,在建筑中,凹面结构可以创造出惊艳的视觉效果,并增强音乐厅的音响效果。凹面形状可以帮助将声波聚焦到特定点,使其成为设计声音质量至关重要的空间时的基本元素。悉尼歌剧院以其标志性的帆船造型而闻名,具有凹面形式,不仅增添了美学吸引力,还提升了作为表演场所的功能性。此外,在光学领域,凹面透镜广泛应用于眼镜、显微镜和望远镜等各种设备中。凹面透镜的中心比边缘薄,使得光线通过时发生发散。这一特性使得凹面透镜非常适合矫正近视,帮助人们更清晰地看到远处的物体。关于凹面透镜的科学原理,例证了对形状的理解如何能在日常生活中带来切实的解决方案。除了功能应用外,凹面形状在艺术和设计中也经常出现。艺术家们常常使用凹面形式来在作品中创造深度和透视效果。光与阴影在凹面表面上的相互作用可以唤起情感并吸引观众的注意。例如,融入凹面元素的雕塑可以创造出运动感和流动感,吸引观众的想象力。此外,凹面的概念并不限于物理形状。在数学中,术语凹面用于描述具有特定曲率的函数。凹面函数是指连接函数图形上任意两点的线段位于图形下方的函数。这一特性在经济学和优化问题中具有重要意义,因为它与收益递减和风险评估相关。总之,术语凹面涵盖了各个学科中广泛的含义和应用。从增强建筑声学到矫正视力,以及激发艺术表现,凹面形状是自然环境和设计环境中不可或缺的一部分。通过研究凹面表面的性质和用途,我们对我们世界中形状的复杂性和美感有了更深刻的理解。理解如何应用凹面的概念可以带来创新的解决方案和创意表达,使其成为科学和艺术的一个重要方面。