dilation

简明释义

英[daɪˈleɪʃn]美[daɪˈleɪʃn]

n. 扩张，扩大；膨胀；详述

英英释义

单词用法

同义词

反义词

例句

1.Your doctor is checking your progression each week, looking for signs of dilation and effacement.

你的医生现在会每周检查一下你的进程，寻找扩张和收缩的迹象。

2.The opposite was true in the control group: slightly more pain and a little more vessel dilation.

而对照组则与此相反：胸痛有所增强，血管有少许扩张。

3.This article presents an optimized method for erosion and dilation operations in binary mathematical morphology.

详细介绍了一种二值数学形态学腐蚀膨胀运算的优化实现方法。

4.The light degree dilation of intrahepatic bile duct were found in whose clinical symptom and sign were not clear and obvious.

无明显临床症状和体征者肝内胆管为轻微或轻度扩张。

5.The patient may be examined with pupillary dilation.

病人可做瞳孔扩张检查。

6.Over time, matrix metalloproteinases and other enzymes slowly degrade the aortic walls, possibly leading to aortic dilation.

随着时间的推移，金属蛋白酶以及其他的酶类慢慢地降解主动脉壁，可能导致主动脉扩张。

7.The physical therapist monitored the dilation 扩张 of the patient's veins during the exercise.

物理治疗师在锻炼期间监测患者静脉的dilation 扩张。

8.In astronomy, the dilation 扩张 of light waves can indicate the movement of stars.

在天文学中，光波的dilation 扩张可以指示星星的运动。

9.The dilation 扩张 of blood vessels helps to regulate blood pressure.

血管的dilation 扩张有助于调节血压。

10.The doctor explained that the pupil's dilation 扩张 is a normal response to low light.

医生解释说，瞳孔的dilation 扩张是对低光照的正常反应。

11.During the eye exam, the optometrist used drops to induce dilation 扩张 of the pupils.

在眼科检查中，验光师使用药水来诱导瞳孔的dilation 扩张。

作文

In the field of biology, the concept of dilation (扩张) plays a crucial role in understanding various physiological processes. Dilation refers to the process of expanding or enlarging an organ or a structure, often as a response to certain stimuli. For instance, when we talk about blood vessels, dilation (扩张) is essential for regulating blood flow and pressure. When the body requires more oxygen or nutrients, the blood vessels undergo dilation (扩张), allowing more blood to flow to the necessary areas. This is particularly evident during physical exercise when the muscles demand increased blood supply to sustain their activity.Moreover, dilation (扩张) is not limited to vascular systems; it also occurs in other parts of the body. The pupils of our eyes undergo dilation (扩张) in low-light conditions, allowing more light to enter and enhancing our vision. This automatic response is controlled by the iris, which adjusts the size of the pupil based on the light intensity. Thus, dilation (扩张) serves a vital function in helping us adapt to our environment.In the realm of physics, dilation (扩张) takes on a different meaning, particularly in the context of space and time. The theory of relativity introduced by Albert Einstein discusses the concept of time dilation (扩张), which asserts that time moves at different rates depending on the relative speed of objects. For example, an astronaut traveling at high speeds in space would experience time more slowly compared to someone on Earth. This fascinating aspect of dilation (扩张) challenges our conventional understanding of time and showcases the complexities of the universe.Furthermore, dilation (扩张) is also significant in mathematics, particularly in geometry. When we talk about geometric transformations, dilation (扩张) refers to the process of resizing a figure while maintaining its shape. This transformation can be applied to various shapes, such as circles, triangles, and polygons, allowing them to grow larger or smaller based on a scale factor. Understanding dilation (扩张) in this context is essential for students as it lays the foundation for more advanced concepts in geometry and algebra.Lastly, in medical practice, dilation (扩张) is often used in procedures to widen or open specific passages in the body. For example, doctors may perform a procedure known as angioplasty, where a balloon is inserted into a narrowed blood vessel and inflated to induce dilation (扩张). This helps restore proper blood flow and can prevent serious health issues such as heart attacks. Similarly, dilation (扩张) can refer to the process of widening the cervix during childbirth, allowing for a smoother delivery process.In conclusion, the term dilation (扩张) encompasses a wide range of meanings across various fields, including biology, physics, mathematics, and medicine. Understanding dilation (扩张) not only enhances our knowledge of biological functions but also deepens our appreciation for the laws of physics and the intricacies of mathematical transformations. Whether it is the expansion of blood vessels, the adjustment of our pupils, or the resizing of geometric figures, dilation (扩张) is a fundamental concept that connects many aspects of science and everyday life.

在生物学领域，dilation（扩张）这一概念在理解各种生理过程方面发挥着至关重要的作用。扩张指的是扩展或增大一个器官或结构的过程，通常是对某些刺激的反应。例如，当我们谈论血管时，dilation（扩张）对于调节血流和血压至关重要。当身体需要更多氧气或营养时，血管会经历dilation（扩张），允许更多血液流向必要的区域。这在身体锻炼期间尤为明显，因为肌肉需要增加的血液供应来维持其活动。此外，dilation（扩张）并不仅限于血管系统；它也发生在身体的其他部位。我们的眼睛瞳孔在光线较暗的情况下会经历dilation（扩张），允许更多的光线进入，增强我们的视力。这一自动反应由虹膜控制，虹膜根据光线强度调整瞳孔的大小。因此，dilation（扩张）在帮助我们适应环境方面起着至关重要的作用。在物理学领域，dilation（扩张）具有不同的含义，特别是在空间和时间的背景下。阿尔伯特·爱因斯坦提出的相对论讨论了时间dilation（扩张）的概念，认为时间的流逝速率取决于物体的相对速度。例如，在太空中以高速旅行的宇航员会比地球上的人经历更慢的时间。这一迷人的dilation（扩张）方面挑战了我们对时间的传统理解，并展示了宇宙的复杂性。此外，dilation（扩张）在数学中也很重要，特别是在几何学中。当我们谈论几何变换时，dilation（扩张）指的是在保持形状不变的情况下调整图形大小的过程。这种变换可以应用于各种形状，如圆形、三角形和多边形，使它们根据比例因子变得更大或更小。在这个背景下理解dilation（扩张）对于学生来说是至关重要的，因为它为更高级的几何和代数概念奠定了基础。最后，在医学实践中，dilation（扩张）通常用于扩大或打开身体特定通道的程序。例如，医生可能会进行一种称为血管成形术的程序，其中将气囊插入狭窄的血管并充气以诱导dilation（扩张）。这有助于恢复正常的血流，并可以防止严重的健康问题，如心脏病发作。同样，dilation（扩张）也可以指在分娩过程中扩张子宫颈的过程，从而使分娩过程更加顺利。总之，术语dilation（扩张）涵盖了多个领域的广泛含义，包括生物学、物理学、数学和医学。理解dilation（扩张）不仅增强了我们对生物功能的认识，还加深了我们对物理法则和数学变换复杂性的欣赏。无论是血管的扩张、瞳孔的调整还是几何图形的调整，dilation（扩张）都是连接科学和日常生活许多方面的基本概念。