mach indicator

简明释义

马赫数计

英英释义

例句

1.The pilot checked the mach indicator before initiating the descent.

飞行员在开始下降之前检查了马赫指示器。

2.The mach indicator showed that we were approaching the speed of sound.

马赫指示器显示我们正在接近音速。

3.A malfunction in the mach indicator can lead to unsafe flight conditions.

在马赫指示器中发生故障可能导致不安全的飞行条件。

4.The engineer calibrated the mach indicator to ensure accurate readings.

工程师校准了马赫指示器以确保读数准确。

5.During supersonic flight, the mach indicator is crucial for maintaining control.

在超音速飞行中，马赫指示器对于保持控制至关重要。

作文

In the field of aerodynamics and aviation, understanding the concept of a mach indicator is crucial for pilots and engineers alike. A mach indicator is a device that measures the speed of an aircraft relative to the speed of sound in the surrounding medium. This measurement is known as Mach number, which is defined as the ratio of the speed of the object to the speed of sound. For instance, if an aircraft is traveling at a speed of 340 meters per second in air where the speed of sound is also 340 meters per second, its Mach number would be 1, indicating that it is traveling at the speed of sound.The importance of a mach indicator cannot be overstated. As aircraft approach or exceed the speed of sound, they encounter various aerodynamic phenomena that can significantly affect their performance and handling. For example, when an aircraft reaches transonic speeds (around Mach 0.8 to Mach 1.2), it experiences shock waves that can lead to increased drag and potential instability. Pilots rely on the mach indicator to maintain awareness of their speed relative to Mach 1, ensuring safe operation during critical phases of flight.Moreover, modern aircraft are designed with specific Mach limits that must not be exceeded to avoid structural damage. The mach indicator plays a vital role in helping pilots adhere to these limits by providing real-time feedback on their speed. In commercial aviation, for instance, airlines typically operate at cruising speeds around Mach 0.8 to 0.85, balancing fuel efficiency with passenger comfort. The mach indicator ensures that pilots do not inadvertently exceed these speeds, which could lead to increased fuel consumption and potential safety risks.In addition to its practical applications in aviation, the mach indicator also serves as a critical parameter in aerospace engineering and research. Engineers use data from mach indicators during flight testing to gather information on the aerodynamic performance of new aircraft designs. By analyzing how an aircraft behaves at various Mach numbers, engineers can refine their designs to optimize performance and safety.Furthermore, the mach indicator is not limited to traditional fixed-wing aircraft. It is equally important in the world of high-speed vehicles, such as rockets and missiles, where speeds can exceed several times the speed of sound. Understanding Mach dynamics is essential for the development of these vehicles, and the mach indicator provides crucial data that informs design choices and flight strategies.In conclusion, the mach indicator is an indispensable tool in aviation and aerospace. It provides essential information about an aircraft's speed relative to the speed of sound, allowing pilots to navigate safely and efficiently. Whether in commercial aviation or advanced aerospace research, the mach indicator plays a pivotal role in ensuring optimal performance and safety. As technology advances and speeds continue to increase in the aviation sector, the significance of the mach indicator will only grow, making it an enduring element of flight operations and engineering practices.

在空气动力学和航空领域，理解mach indicator的概念对飞行员和工程师都是至关重要的。mach indicator是一个测量飞机相对于周围介质中声速的速度的设备。这个测量被称为马赫数，它被定义为物体速度与声速的比率。例如，如果一架飞机在空气中以340米每秒的速度飞行，而声速也是340米每秒，那么它的马赫数将为1，这表明它正以声速飞行。mach indicator的重要性不容小觑。当飞机接近或超过声速时，它们会遇到各种气动现象，这些现象可能会显著影响其性能和操控性。例如，当飞机达到跨声速速度（大约马赫0.8到马赫1.2）时，会产生冲击波，导致阻力增加和潜在的不稳定性。飞行员依靠mach indicator保持对自己相对于马赫1的速度的意识，以确保在飞行的关键阶段安全操作。此外，现代飞机设计有特定的马赫限制，必须避免超过这些限制，以免造成结构损坏。mach indicator在帮助飞行员遵守这些限制方面发挥了重要作用，提供实时反馈他们的速度。例如，在商业航空中，航空公司通常以大约马赫0.8到0.85的巡航速度运营，平衡燃油效率和乘客舒适度。mach indicator确保飞行员不会无意中超过这些速度，这可能导致燃油消耗增加和潜在的安全风险。除了在航空中的实际应用外，mach indicator在航空航天工程和研究中也是一个关键参数。工程师在飞行测试中使用来自mach indicators的数据，以收集新飞机设计的气动性能信息。通过分析飞机在不同马赫数下的表现，工程师可以优化设计以提高性能和安全性。此外，mach indicator不仅限于传统的固定翼飞机。在高速车辆的世界中，例如火箭和导弹，其速度可以超过几个声速，mach indicator同样重要。理解马赫动态对这些车辆的发展至关重要，而mach indicator提供的关键数据为设计选择和飞行策略提供了信息。总之，mach indicator是航空和航空航天中不可或缺的工具。它提供有关飞机相对于声速的速度的基本信息，使飞行员能够安全高效地导航。无论是在商业航空还是先进的航空航天研究中，mach indicator在确保最佳性能和安全性方面都发挥着关键作用。随着技术的进步和航空领域速度的持续增加，mach indicator的重要性只会增加，使其成为飞行操作和工程实践中持久的元素。