mercury barometer

简明释义

水银气压表

英英释义

例句

1.A mercury barometer can be an essential tool for sailors to predict changes in weather.

对于水手来说，水银气压计可以是预测天气变化的重要工具。

2.The mercury barometer indicates a drop in pressure, suggesting a storm may be approaching.

当水银气压计显示气压下降时，意味着可能有风暴来临。

3.In a science experiment, we used a mercury barometer to demonstrate how pressure changes with altitude.

在一次科学实验中，我们使用了水银气压计来演示随着高度变化的压力变化。

4.To calibrate the mercury barometer, you need to ensure it is at sea level.

要校准水银气压计，需要确保它位于海平面上。

5.The mercury barometer is used to measure atmospheric pressure in weather forecasting.

在天气预报中，使用水银气压计来测量大气压力。

作文

The mercury barometer is a scientific instrument used to measure atmospheric pressure. It operates on the principle that changes in air pressure can cause a column of mercury to rise or fall within a glass tube. This device was invented in the 17th century by Evangelista Torricelli, an Italian physicist and mathematician. The mercury barometer consists of a glass tube that is sealed at one end and filled with mercury. The open end is then inverted into a basin filled with mercury, creating a vacuum at the top of the tube. As atmospheric pressure changes, it exerts force on the surface of the mercury in the basin, causing the mercury level in the tube to rise or fall accordingly.The significance of the mercury barometer lies in its ability to provide accurate measurements of air pressure, which is essential for weather forecasting and understanding atmospheric conditions. Meteorologists rely on this instrument to predict weather patterns, as changes in air pressure can indicate approaching storms or fair weather. For instance, a rapid decrease in air pressure may suggest an impending storm, while a steady increase often indicates improving weather.Despite the advent of digital technology and electronic pressure sensors, the mercury barometer remains a fundamental tool in meteorology due to its reliability and precision. Its design is simple yet effective, allowing for easy observation of pressure changes. Additionally, the use of mercury provides a clear and measurable scale, making it easier for scientists and enthusiasts alike to read and interpret the data.Furthermore, the mercury barometer is not only valuable for professional meteorologists but also serves educational purposes. In classrooms, students learn about atmospheric pressure and its effects on weather through hands-on experiments with this instrument. By observing how the mercury reacts to changes in pressure, students gain a deeper understanding of fundamental scientific principles.However, it is important to note that while the mercury barometer is effective, it does come with certain drawbacks. Mercury is a toxic substance, and its use poses environmental and health risks. As a result, many modern instruments have shifted towards using alternative fluids or electronic sensors that do not carry the same hazards. Nevertheless, the mercury barometer remains a historical and educational icon in the field of meteorology.In conclusion, the mercury barometer is a crucial instrument for measuring atmospheric pressure, providing valuable data for weather forecasting and educational purposes. Its invention marked a significant advancement in the scientific understanding of the atmosphere, and despite modern alternatives, it continues to be appreciated for its accuracy and simplicity. Understanding the mercury barometer not only enriches our knowledge of meteorology but also highlights the importance of monitoring and studying our planet's atmospheric conditions.

水银气压计是一种用于测量大气压力的科学仪器。它的工作原理是空气压力的变化会导致水银柱在玻璃管中上升或下降。这个设备是由意大利物理学家和数学家埃万杰利斯塔·托里拆利于17世纪发明的。水银气压计由一个密封在一端的玻璃管组成，管内充满水银。开放的一端倒置在装满水银的盆中，管顶形成真空。当大气压力变化时，它会对盆中水银的表面施加力，从而导致管中的水银水平相应地上升或下降。水银气压计的重要性在于它能够提供准确的大气压力测量，这对于天气预报和理解大气条件至关重要。气象学家依赖这种仪器来预测天气模式，因为气压的变化可以指示即将到来的风暴或良好的天气。例如，气压的快速下降可能表明即将来临的风暴，而稳定的上升通常表示天气在好转。尽管数字技术和电子压力传感器的出现，水银气压计仍然是气象学中基本的工具，因为它的可靠性和精确性。它的设计简单而有效，便于观察压力变化。此外，水银的使用提供了清晰可测的刻度，使科学家和爱好者更容易读取和解释数据。此外，水银气压计不仅对专业气象学家有价值，还具有教育用途。在课堂上，学生通过动手实验学习大气压力及其对天气的影响。通过观察水银如何对压力变化作出反应，学生对基本科学原理有了更深入的理解。然而，需要注意的是，虽然水银气压计有效，但也存在某些缺点。水银是一种有毒物质，其使用对环境和健康构成风险。因此，许多现代仪器已转向使用替代流体或不带有相同危害的电子传感器。然而，水银气压计仍然是气象学领域历史和教育的象征。总之，水银气压计是测量大气压力的重要仪器，为天气预报和教育目的提供了宝贵的数据。它的发明标志着科学对大气理解的重要进步，尽管现代替代品层出不穷，但它因其准确性和简洁性而继续受到赞赏。理解水银气压计不仅丰富了我们对气象学的知识，也突显了监测和研究我们星球大气条件的重要性。