cavitations

简明释义

英[ˌkævɪˈteɪʃənz]美[ˌkævɪˈteɪʃənz]

n. 穴蚀现象（cavitation 的复数）

英英释义

单词用法

同义词

反义词

例句

1.Along with radius of three cavitations bubbles reducing, the intensity of pressure to rigid wall is strengthened gradually.

随着三空化泡初始半径的减小，三空化泡对刚性壁面的压强作用逐渐增强。

2.Impeller: Sure to change impeller if it has serious cavitations (main vanes in particular), over corrosion, wear and tear and breakage.

叶轮：严重汽蚀(特别是主叶片)、过度腐蚀、磨损、破损时，要求更换叶轮。

3.The article introduces the selection and application of regulation valves for the purpose of solving the problem of flash vaporization and cavitations.

针对调节阀的闪蒸和气蚀问题，介绍了调节阀在选型和使用中的要点。

4.The causes of the circulating water pump impeller cavitations are analyzed, and good results are achieved through the use of wear putty to repair the impeller.

分析了循环水泵叶轮汽蚀的原因，通过采用耐磨修补剂对叶轮修补的方法，取得了良好的效果。

5.Diesel oil and water turned into thin emulsified fuel with the shear and extrusion in the mechanical blenders, and then became thinner with the ultrasonic cavitations.

柴油和水经过机械乳化器的挤压和剪切作用变成较细的乳化油，然后经超声乳化器的空化作用进一步细化。

6.In chapter 4, the effects of the nozzle construction and the operating parameters to the self excitation before the cavitations actions have been discussed.

第四章讨论空化发生前，喷嘴结构参数及运行参数对激振效果的影响，提出自激喷嘴的数值优化理论。

7.After the actuality study of measuring the incipient cavitations of centrifugal pump, according to the problem that the precision of measuring and real time was insufficient.

通过对水泵汽蚀现象的分析，阐述了水泵汽蚀的危害，提出了在设计和运行中防止和减轻汽蚀的措施。

8.The inertial cavitations near the surface of skin play important roles in the transdermal enhancement of low-frequency ultrasound.

发生在皮肤表面附近的惯性空化作用在低频超声增透效应中发挥主要作用。

9.The engineer explained that the pump failure was due to cavitations 气穴现象 in the system.

工程师解释说，泵的故障是由于系统中的气穴现象造成的。

10.In marine applications, cavitations 气穴现象 can lead to significant damage to propellers.

在海洋应用中，气穴现象可能会对螺旋桨造成重大损害。

11.The research focused on reducing cavitations 气穴现象 in hydraulic systems to improve efficiency.

这项研究集中在减少液压系统中的气穴现象以提高效率。

12.During the testing phase, we observed cavitations 气穴现象 forming at high flow rates.

在测试阶段，我们观察到在高流速下形成了气穴现象。

13.The dentist explained that cavitations 气穴现象 in teeth can lead to decay and other issues.

牙医解释说，牙齿中的气穴现象可能导致腐烂和其他问题。

作文

Cavitations are a fascinating phenomenon that occurs in various fields, from engineering to biology. At its core, cavitations (气穴) refer to the formation of vapor-filled cavities in a liquid when it is subjected to rapid changes in pressure. This can happen in many situations, such as when a propeller spins quickly through water or when liquid flows through a valve. The study of cavitations (气穴) is essential for understanding how these bubbles form and collapse, which can lead to both beneficial and detrimental effects. In engineering, particularly in fluid mechanics, cavitations (气穴) can cause significant damage to equipment. For instance, when a ship's propeller operates at high speeds, the low-pressure zones created by the spinning blades can lead to the formation of vapor bubbles. These bubbles can implode violently, producing shock waves that erode the metal surfaces of the propeller. This process not only reduces the efficiency of the propeller but also shortens its lifespan, leading to costly repairs and replacements. On the other hand, cavitations (气穴) can also have beneficial applications. In medical treatments, for example, ultrasound therapy utilizes the concept of cavitations (气穴) to target and destroy unwanted tissues, such as tumors. The rapid formation and collapse of bubbles generated by ultrasound waves create localized high temperatures and pressures, effectively disrupting the cellular structure of the targeted area. This technique has shown promise in non-invasive surgeries, providing patients with safer and less painful options. Moreover, cavitations (气穴) play a crucial role in natural processes, such as the behavior of aquatic animals. Some fish species have evolved to use cavitations (气穴) to their advantage during hunting. By rapidly moving their fins or tails, they create low-pressure zones that generate bubbles. When these bubbles collapse, they produce shock waves that can stun or disorient prey, making it easier for the fish to capture their meal. This unique adaptation highlights the intricate relationship between organisms and the physical principles governing their environments. In conclusion, cavitations (气穴) are a complex yet vital aspect of both natural and engineered systems. Understanding the mechanisms behind cavitations (气穴) allows scientists and engineers to harness their potential benefits while mitigating their harmful effects. As research continues to advance, the applications of cavitations (气穴) will likely expand, revealing even more innovative uses across various disciplines. Whether in the context of improving industrial machinery or enhancing medical treatments, the study of cavitations (气穴) remains an exciting frontier in science and technology.

气穴是一个迷人的现象，发生在各个领域，从工程到生物学。其核心是气穴（cavitations）指的是当液体受到快速压力变化时，形成充满蒸汽的空腔。这种情况可以在许多情况下发生，例如当螺旋桨快速旋转穿过水或当液体流经阀门时。研究气穴（cavitations）对于理解这些气泡如何形成和崩溃至关重要，这可能导致有益和有害的影响。 在工程中，特别是在流体力学中，气穴（cavitations）可能对设备造成重大损害。例如，当船舶的螺旋桨以高速运转时，旋转叶片产生的低压区域可能导致蒸汽气泡的形成。这些气泡可能会剧烈地崩溃，产生冲击波，侵蚀螺旋桨的金属表面。这个过程不仅降低了螺旋桨的效率，还缩短了其使用寿命，导致昂贵的维修和更换。 另一方面，气穴（cavitations）也可以具有有益的应用。例如，在医疗治疗中，超声波疗法利用气穴（cavitations）的概念来靶向和摧毁不需要的组织，如肿瘤。超声波产生的气泡快速形成和崩溃，创造出局部高温和高压，有效破坏目标区域的细胞结构。这种技术在非侵入性手术中显示出希望，为患者提供更安全和更少痛苦的选择。 此外，气穴（cavitations）在自然过程中也发挥着关键作用，例如水生动物的行为。一些鱼类已经进化出利用气穴（cavitations）来捕猎的优势。通过快速移动鳍或尾巴，它们创造出低压区域，生成气泡。当这些气泡崩溃时，会产生冲击波，可以使猎物晕眩或失去方向，使鱼类更容易捕获猎物。这种独特的适应性突显了生物体与其环境中支配的物理原则之间的复杂关系。 总之，气穴（cavitations）是自然和工程系统中一个复杂而重要的方面。理解气穴（cavitations）背后的机制使科学家和工程师能够利用其潜在的好处，同时减轻其有害影响。随着研究的不断推进，气穴（cavitations）的应用可能会扩大，揭示出更多创新的用途，涵盖各种学科。无论是在改善工业机械的背景下还是增强医疗治疗的背景下，气穴（cavitations）的研究仍然是科学和技术的一个令人激动的前沿。