derived unit

简明释义

导出单位

英英释义

例句

1.The area measured in square meters is another example of a derived unit (导出单位).

以平方米为单位测量的面积是另一个导出单位的例子。

2.Electricity consumption is measured in kilowatt-hours, a derived unit (导出单位) of energy.

电力消耗以千瓦时为单位，这是一个能量的导出单位。

3.The derived unit (导出单位) for measuring volume is the cubic meter.

测量体积的导出单位是立方米。

4.In physics, a speed of meters per second is a derived unit (导出单位) that combines distance and time.

在物理学中，米每秒的速度是一个导出单位，它结合了距离和时间。

5.Pressure is often expressed in pascals, which is a derived unit (导出单位) of force per unit area.

压力通常以帕斯卡为单位表示，这是一个单位面积上的力的导出单位。

作文

In the field of science and engineering, units of measurement play a crucial role in ensuring accurate communication and understanding. Among these units, we often encounter the term derived unit, which refers to a unit of measurement that is derived from the fundamental units. Fundamental units are the basic building blocks of measurement, such as meter for length, kilogram for mass, and second for time. In contrast, derived units are formed by combining these fundamental units through multiplication or division. For example, the unit of speed, meters per second (m/s), is a derived unit because it combines the fundamental unit of length (meters) with the fundamental unit of time (seconds). Understanding derived units is essential for various scientific disciplines, including physics, chemistry, and engineering. They allow scientists and engineers to express complex concepts in a manageable form. For instance, pressure is expressed in pascals (Pa), which is defined as one newton per square meter (N/m²). Here, the newton is itself a derived unit, representing force, which is derived from mass and acceleration. Thus, derived units often provide a more comprehensive understanding of the relationships between different physical quantities.Moreover, derived units are not limited to just one combination of fundamental units. They can be expressed in various ways depending on the context. For example, energy can be measured in joules (J), which can also be expressed as kg·m²/s², illustrating how derived units can be interrelated and converted based on the fundamental units involved. This flexibility is particularly beneficial in scientific research, where different fields may prefer different units for the same measurement.In addition to their practical applications, derived units also highlight the interconnectedness of various physical phenomena. By understanding how different units relate to one another, researchers can develop a deeper insight into the laws governing the universe. For instance, the relationship between force, mass, and acceleration is encapsulated in Newton's second law of motion, F = ma, where force (F) is a derived unit based on the fundamental units of mass (kg) and acceleration (m/s²). This relationship showcases how derived units can help unify different concepts in physics.In conclusion, the concept of derived unit is fundamental to the scientific community. By understanding how these units are formed from fundamental units, we gain valuable insights into the relationships between various physical quantities. The ability to express complex ideas through derived units not only facilitates communication among scientists but also enhances our overall comprehension of the natural world. As we continue to explore new scientific frontiers, mastering derived units will remain an essential skill for anyone involved in the fields of science and engineering.

在科学和工程领域，测量单位在确保准确的交流和理解方面起着至关重要的作用。在这些单位中，我们经常会遇到术语派生单位，它指的是从基本单位派生出的测量单位。基本单位是测量的基本构建块，例如长度的米、质量的千克和时间的秒。相反，派生单位是通过乘法或除法组合这些基本单位形成的。例如，速度的单位米每秒（m/s）就是一个派生单位，因为它将长度的基本单位（米）与时间的基本单位（秒）结合在一起。理解派生单位对于物理、化学和工程等各个科学学科至关重要。它们使科学家和工程师能够以可管理的形式表达复杂的概念。例如，压力以帕斯卡（Pa）表示，定义为每平方米一个牛顿（N/m²）。在这里，牛顿本身就是一个派生单位，表示力，这个单位是由质量和加速度派生而来的。因此，派生单位通常提供了对不同物理量之间关系的更全面理解。此外，派生单位不仅限于一种基本单位的组合。根据上下文，它们可以以不同的方式表达。例如，能量可以用焦耳（J）来测量，也可以表示为kg·m²/s²，这表明派生单位可以相互关联并根据所涉及的基本单位进行转换。这种灵活性在科学研究中尤其有益，因为不同领域可能会更喜欢用不同的单位表示同一测量。除了实际应用之外，派生单位还突显了各种物理现象之间的相互联系。通过理解不同单位之间的关系，研究人员可以更深入地洞察支配宇宙的法则。例如，力、质量和加速度之间的关系体现在牛顿第二运动定律F = ma中，其中力（F）是基于质量（kg）和加速度（m/s²）的派生单位。这种关系展示了派生单位如何帮助统一物理学中的不同概念。总之，派生单位的概念对于科学界至关重要。通过理解这些单位是如何由基本单位形成的，我们获得了对各种物理量之间关系的宝贵洞察。通过派生单位表达复杂思想的能力不仅促进了科学家之间的交流，还增强了我们对自然世界的整体理解。随着我们继续探索新的科学前沿，掌握派生单位将始终是任何参与科学和工程领域的人的基本技能。