subsonic

简明释义

英[ˌsʌbˈsɒnɪk]美[ˌsʌbˈsɑːnɪk]

adj. 次音速的；比音速稍慢的

n. 亚音速飞机

英英释义

单词用法

同义词

反义词

例句

1.However, after the shock the flow in the jet will still be subsonic.

不过，后休克的流动，在射流仍会亚音速。

2.Technique of in flight measurement of pressure distribution on a subsonic transport aircraft is introduced. Some flight test results are presented.

简要地介绍了亚音速飞机压力分布测量的飞行试验技术，并给出了部分试验结果。

3.The Boeing Company's Subsonic Ultra Green Aircraft Research, or SUGAR, team examined five concepts.

波音公司的“亚音速终极绿色飞行器研究”（SUGAR）团队检验了5个概念。

4.When subsonic aircraft NOX emission over China is doubled, its influence is still relatively small.

即使中国地区亚音速飞机排放的NO_x增加一倍，这个影响仍然比较小。

5.This method can be used to evaluate the lift distribution and 11 main longitudinal aerodynamic derivatives of elastic aircraft at subsonic speeds.

可以用它来计算亚音速时弹性飞机的升力分布及11个主要的纵向气动导数。

6.It's capable of subsonic flying as high as 12 thousand meters with an attack range of at least 2000 kilometers.

它的次音速飞行能力高达1.2万米，攻击距离至少为直径2000公里。

7.The subsonic (亚音速) wind tunnel is used for testing the aerodynamic properties of various models.

这个subsonic（亚音速）风洞用于测试各种模型的空气动力学特性。

8.The aircraft was designed to fly at a speed classified as subsonic (亚音速), allowing it to travel efficiently without breaking the sound barrier.

这架飞机的设计速度被归类为subsonic（亚音速），使其能够在不突破音障的情况下高效飞行。

9.A subsonic (亚音速) bullet can travel faster than the speed of sound in air but does not exceed it.

一颗subsonic（亚音速）子弹可以比空气中的音速更快，但不会超过音速。

10.The subsonic (亚音速) cruise missiles are designed to evade radar detection.

这些subsonic（亚音速）巡航导弹旨在躲避雷达探测。

11.Many commercial jets operate at subsonic (亚音速) speeds, making them suitable for long-distance travel.

许多商业喷气机以subsonic（亚音速）速度飞行，使其适合长途旅行。

作文

In the realm of aerodynamics and aviation, the term subsonic refers to speeds that are less than the speed of sound in air, which is approximately 343 meters per second at sea level. This concept is crucial for understanding various aspects of flight and aircraft design. The significance of subsonic flight cannot be overstated, as it encompasses the majority of commercial air travel today. Most passenger airplanes operate within this speed range, ensuring a balance between efficiency and safety. The physics behind subsonic flight involves a number of factors, including air pressure, temperature, and density. When an aircraft flies at subsonic speeds, the airflow around the wings and fuselage remains attached, allowing for stable lift and control. Engineers must carefully design the shape of an aircraft to optimize its performance in this speed range. For instance, the wings of subsonic aircraft are typically broader and have a greater curvature compared to those designed for supersonic speeds. This design helps to generate the necessary lift while minimizing drag.Additionally, flying at subsonic speeds has implications for fuel efficiency. Aircraft that operate below the speed of sound can achieve better fuel economy, as they do not encounter the intense drag forces associated with transonic and supersonic speeds. This efficiency is vital for airlines, as it directly impacts operational costs and ticket prices for passengers. As a result, advancements in subsonic technology continue to be a focus for aerospace engineers, who strive to create more efficient and environmentally friendly aircraft.Moreover, subsonic flight plays a significant role in military applications. Many military aircraft are designed to operate at subsonic speeds for stealth missions, where avoiding detection is paramount. By flying beneath the speed of sound, these aircraft can reduce their radar cross-section and remain less noticeable to enemy systems. This strategic advantage highlights the importance of subsonic capabilities in modern warfare.In conclusion, the term subsonic encapsulates a critical aspect of aviation, representing speeds below the speed of sound. Its implications extend beyond mere numbers, affecting aircraft design, fuel efficiency, and military strategy. Understanding subsonic flight is essential for anyone interested in the fields of aerodynamics and aviation. As technology progresses, the exploration of subsonic innovations will undoubtedly continue to shape the future of air travel and aerospace engineering.

在空气动力学和航空领域，术语subsonic指的是低于音速的速度，大约为每秒343米（在海平面）。这个概念对于理解飞行和飞机设计的各个方面至关重要。subsonic飞行的重要性不容小觑，因为它涵盖了如今大多数商业航空旅行。大多数客机在这一速度范围内运行，确保效率与安全之间的平衡。subsonic飞行背后的物理学涉及许多因素，包括气压、温度和密度。当飞机以subsonic速度飞行时，机翼和机身周围的气流保持附着，从而实现稳定的升力和控制。工程师必须仔细设计飞机的形状，以优化其在该速度范围内的性能。例如，subsonic飞机的机翼通常比为超音速设计的机翼更宽、更弯曲。这种设计有助于产生必要的升力，同时最小化阻力。此外，以subsonic速度飞行对燃油效率有影响。在音速以下运行的飞机可以实现更好的燃油经济性，因为它们不会遇到与临界和超音速速度相关的强大阻力。这种效率对航空公司至关重要，因为它直接影响运营成本和乘客票价。因此，subsonic技术的进步继续成为航空航天工程师的重点，他们努力创造出更高效和环保的飞机。此外，subsonic飞行在军事应用中也发挥着重要作用。许多军用飞机被设计为在subsonic速度下进行隐蔽任务，在这些任务中，避免被检测是至关重要的。通过低于音速飞行，这些飞机可以减少其雷达截面，使其对敌方系统的可见性降低。这一战略优势突显了现代战争中subsonic能力的重要性。总之，术语subsonic概括了航空的一个关键方面，代表低于音速的速度。它的影响超越了单纯的数字，影响飞机设计、燃油效率和军事战略。理解subsonic飞行对于任何对空气动力学和航空领域感兴趣的人来说都是必不可少的。随着技术的进步，探索subsonic创新无疑将继续塑造航空旅行和航空航天工程的未来。