base unit

简明释义

基本单位

英英释义

例句

1.To convert the temperature, first identify the base unit which is Celsius.

要转换温度，首先确定基本单位是摄氏度。

2.The base unit of measurement for length is the meter.

长度的基本单位是米。

3.In this experiment, we will use the base unit of grams for measuring mass.

在这个实验中，我们将使用基本单位克来测量质量。

4.In the metric system, the base unit for volume is the liter.

在公制系统中，体积的基本单位是升。

5.The base unit for electric current is the ampere.

电流的基本单位是安培。

作文

In the realm of science and technology, understanding the concept of a base unit is essential for accurate measurement and communication. A base unit is defined as a fundamental quantity in a system of measurement that cannot be derived from other quantities. For instance, in the International System of Units (SI), there are seven base units: meter for length, kilogram for mass, second for time, ampere for electric current, kelvin for temperature, mole for the amount of substance, and candela for luminous intensity. Each of these base units serves as the foundation upon which other measurements are built, known as derived units.The significance of base units extends beyond mere definitions; they are crucial for scientific research and technological development. When scientists conduct experiments, they rely on base units to ensure that their measurements are consistent and comparable. For example, if two researchers measure the speed of light, they must use the same base unit for distance (meters) and time (seconds) to arrive at a universally accepted value. This consistency is vital for the advancement of knowledge in fields such as physics, chemistry, and engineering.Moreover, the use of base units simplifies complex calculations. Derived units, which are combinations of base units, can often lead to confusion if the underlying base units are not clearly understood. For example, the unit of force, the newton, is defined as a kilogram meter per second squared (kg·m/s²). Without a solid grasp of the base units, one might struggle to comprehend how these units interact with each other in various equations.In everyday life, base units are also relevant. When we cook, we measure ingredients in grams or liters, which are derived from the base units of mass and volume. Understanding these base units allows us to follow recipes accurately and achieve the desired results in our culinary endeavors. Similarly, when we exercise, we might track our weight in kilograms or the distance we run in meters, further illustrating the practical applications of base units in daily activities.Education plays a pivotal role in instilling an understanding of base units in students. In schools, students learn about the metric system and its base units early on, laying the groundwork for future scientific education. By grasping the importance of these fundamental measurements, students become better equipped to engage with more advanced concepts in mathematics and science.In conclusion, the concept of base units is fundamental to both scientific inquiry and everyday life. Whether in the laboratory or the kitchen, understanding base units enables accurate measurement and effective communication. As we continue to explore the universe and develop new technologies, the importance of base units will only grow, highlighting their role as the building blocks of measurement. Therefore, it is crucial for individuals, especially students, to appreciate and master the concept of base units to navigate the complexities of the world around them.

在科学和技术领域，理解“基本单位”的概念对于准确测量和交流至关重要。“基本单位”被定义为在测量系统中不能从其他量中推导出来的基本量。例如，在国际单位制（SI）中，有七个“基本单位”：米用于长度，千克用于质量，秒用于时间，安培用于电流，开尔文用于温度，摩尔用于物质的量，以及坎德拉用于光强。每个“基本单位”都作为其他测量的基础，被称为派生单位。“基本单位”的重要性不仅仅在于定义；它们对科学研究和技术发展至关重要。当科学家进行实验时，他们依赖“基本单位”来确保其测量的一致性和可比性。例如，如果两位研究人员测量光速，他们必须使用相同的“基本单位”来表示距离（米）和时间（秒），以得到一个公认的值。这种一致性对物理、化学和工程等领域的知识进步至关重要。此外，使用“基本单位”简化了复杂的计算。派生单位是“基本单位”的组合，如果不清楚其基础“基本单位”，可能会导致混淆。例如，力的单位牛顿被定义为千克米每秒平方（kg·m/s²）。没有对“基本单位”的扎实掌握，人们可能会难以理解这些单位在各种方程中的相互作用。在日常生活中，“基本单位”也很相关。当我们烹饪时，我们用克或升来测量成分，这些都是源于质量和体积的“基本单位”。理解这些“基本单位”使我们能够准确地跟随食谱，并在烹饪中获得理想的结果。同样，当我们锻炼时，可能会以千克来跟踪我们的体重，或者以米来记录我们跑的距离，进一步说明“基本单位”在日常活动中的实际应用。教育在培养学生对“基本单位”的理解方面发挥着关键作用。在学校，学生早期学习公制系统及其“基本单位”，为未来的科学教育奠定基础。通过掌握这些基本测量的重要性，学生能够更好地参与数学和科学的更高级概念。总之，“基本单位”的概念是科学探究和日常生活的基础。无论是在实验室还是厨房，理解“基本单位”能够实现准确测量和有效沟通。随着我们继续探索宇宙和开发新技术，“基本单位”的重要性只会增加，突显出它们作为测量构建块的角色。因此，个人，尤其是学生，掌握和理解“基本单位”的概念，对于驾驭周围世界的复杂性至关重要。