mercury barometer

简明释义

汞弧气压表

英英释义

例句

1.To understand the changes in weather, you can observe the mercury barometer readings.

要了解天气变化，你可以观察水银气压计的读数。

2.A falling mercury barometer indicates that a storm may be approaching.

下降的水银气压计显示可能有风暴来临。

3.The weather station uses a mercury barometer to measure atmospheric pressure.

气象站使用水银气压计来测量大气压力。

4.Sailors often rely on a mercury barometer to predict changes in weather at sea.

水手们常常依赖水银气压计来预测海上的天气变化。

5.The mercury barometer was invented in the 17th century and has been crucial for meteorology.

水银气压计是在17世纪发明的，对气象学至关重要。

作文

The mercury barometer is an essential instrument used in meteorology to measure atmospheric pressure. This device has a long history, dating back to the 17th century when it was invented by Evangelista Torricelli, an Italian physicist and mathematician. The principle behind the mercury barometer is quite simple yet fascinating. It operates based on the concept of hydrostatic pressure, where the weight of mercury in a glass tube creates a vacuum at the top. As atmospheric pressure changes, the height of the mercury column rises or falls accordingly.One of the most remarkable features of the mercury barometer is its accuracy. Unlike other types of barometers, such as aneroid barometers, which use mechanical means to measure pressure, the mercury barometer provides a direct measurement of pressure through the height of the mercury column. This allows for precise readings, making it a favorite among meteorologists and scientists.In practical terms, the mercury barometer consists of a glass tube that is about 1 meter long, filled with mercury, and inverted into a basin of mercury. When atmospheric pressure increases, it pushes down on the mercury in the basin, causing the mercury in the tube to rise. Conversely, when the atmospheric pressure decreases, the mercury level in the tube drops. The height of the mercury column is then measured in millimeters or inches, providing a clear indication of the current atmospheric pressure.The mercury barometer is not only important for weather forecasting but also plays a crucial role in various scientific applications. For example, it is used in laboratories for experiments involving gas laws and can be found in many educational institutions to teach students about atmospheric pressure and its effects. Additionally, the mercury barometer helps sailors and aviators understand weather patterns, allowing them to make informed decisions about travel and navigation.However, despite its advantages, the use of the mercury barometer has declined in recent years due to environmental concerns associated with mercury. Mercury is a toxic substance, and its use in instruments poses risks if the barometer breaks. As a result, many have turned to alternative barometers that do not use mercury, such as digital and aneroid barometers, which are safer and easier to manage.In conclusion, the mercury barometer remains a significant tool in the field of meteorology, known for its precision and reliability. Understanding how it works and its historical significance can deepen our appreciation for the science of weather forecasting. While modern technology may offer alternatives, the mercury barometer holds a special place in the history of scientific instruments and continues to be a topic of interest for those studying atmospheric sciences. Its ability to accurately measure atmospheric pressure makes it an invaluable resource, even as we look towards more environmentally friendly options for the future.

水银气压计是一种在气象学中用于测量大气压力的重要工具。这种设备有着悠久的历史，可以追溯到17世纪，当时由意大利物理学家和数学家埃万杰利斯塔·托里拆利发明。水银气压计的原理非常简单却引人入胜。它基于静水压力的概念，水银在玻璃管中的重量在顶部形成真空。当大气压力变化时，水银柱的高度相应地上升或下降。水银气压计最显著的特点之一是其准确性。与其他类型的气压计（如无液气压计）不同，后者使用机械手段测量压力，水银气压计通过水银柱的高度直接提供压力测量。这使得它能够提供精确的读数，成为气象学家和科学家的最爱。在实际应用中，水银气压计由一根约1米长的玻璃管组成，管内充满水银，倒置在一个水银盆中。当大气压力增加时，它会向下推动盆中的水银，导致管中的水银上升。相反，当大气压力减少时，管中的水银水平下降。然后以毫米或英寸为单位测量水银柱的高度，从而清楚地指示当前的大气压力。水银气压计不仅对天气预报至关重要，而且在各种科学应用中也发挥着关键作用。例如，它在实验室中用于涉及气体法则的实验，并且可以在许多教育机构中找到，用于教授学生关于大气压力及其影响的知识。此外，水银气压计帮助水手和飞行员了解天气模式，使他们能够就旅行和导航做出明智的决定。然而，尽管水银气压计具有优点，但由于与水银相关的环境问题，其使用在近年来有所减少。水银是一种有毒物质，其在仪器中的使用在气压计破裂时会带来风险。因此，许多人转向不使用水银的替代气压计，如数字气压计和无液气压计，这些气压计更安全、更易于管理。总之，水银气压计仍然是气象学领域的重要工具，以其精确性和可靠性而闻名。理解它的工作原理及其历史意义可以加深我们对天气预报科学的欣赏。虽然现代技术可能提供了替代方案，但水银气压计在科学仪器的历史中占有特殊的地位，并继续吸引那些研究大气科学的人们的兴趣。它准确测量大气压力的能力使其成为一种宝贵的资源，即使在我们展望未来更环保的选择时也是如此。