base unit

简明释义

1. 基本单位; 2. 底座;

英英释义

例句

1.The second is the base unit for time in the SI system.

秒是国际单位制中的时间基本单位。

2.In chemistry, the mole is considered a base unit for amount of substance.

在化学中，摩尔被视为物质的基本单位。

3.When calculating area, the square meter is the base unit used.

在计算面积时，平方米是使用的基本单位。

4.In the metric system, the meter is the base unit of length.

在公制系统中，米是长度的基本单位。

5.The kilogram serves as the base unit for measuring mass in the International System of Units.

千克作为国际单位制中测量质量的基本单位。

作文

In the field of science and technology, understanding the concept of a base unit is crucial for accurate measurements and calculations. A base unit is defined as a fundamental quantity that is used to measure physical phenomena. For instance, in the International System of Units (SI), there are seven base units that serve as the foundation for all other derived units. These include the 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.The significance of base units cannot be understated. They provide a standardized way of measuring and communicating scientific data across different disciplines and countries. Without these standard units, it would be nearly impossible to compare measurements or replicate experiments. For example, if one scientist uses inches while another uses centimeters, their results would be incompatible unless converted, leading to potential misunderstandings and errors.Moreover, base units are essential in fields such as engineering, physics, and chemistry, where precise measurements are critical. Engineers rely on base units to design structures and systems that can withstand various forces and conditions. In physics, researchers use base units to formulate laws and theories that describe the natural world. Similarly, chemists depend on base units to determine concentrations, volumes, and masses of substances in reactions.In addition to their practical applications, base units also have historical significance. The development of standardized units began in the 18th century, with efforts led by scientists like Gabriel Mouton and later formalized by the establishment of the metric system. This movement aimed to create a universal system of measurement that could be adopted globally, fostering collaboration and progress in scientific research.As we move into an increasingly globalized world, the importance of base units continues to grow. With the rise of international collaborations in research and technology, having a common understanding of measurements is vital. For instance, in climate science, researchers from various countries must share data on temperature changes, sea-level rise, and greenhouse gas emissions. Using base units ensures that everyone is speaking the same language when it comes to data interpretation and policy-making.In conclusion, the concept of a base unit is fundamental to the sciences and many aspects of our daily lives. They enable accurate communication and understanding of measurements, which is essential for scientific advancement and technological innovation. As we continue to explore the mysteries of the universe, the role of base units will undoubtedly remain at the forefront of our endeavors, guiding us towards a more precise and interconnected world.

在科学和技术领域，理解基本单位的概念对于准确的测量和计算至关重要。基本单位被定义为用于测量物理现象的基本量。例如，在国际单位制（SI）中，有七个基本单位作为所有其他派生单位的基础。这些单位包括用于长度的米、用于质量的千克、用于时间的秒、用于电流的安培、用于温度的开尔文、用于物质的摩尔，以及用于光强的坎德拉。基本单位的重要性不容小觑。它们提供了一种标准化的方式来测量和交流科学数据，跨越不同的学科和国家。如果没有这些标准单位，比较测量结果或复制实验几乎是不可能的。例如，如果一个科学家使用英寸而另一个使用厘米，他们的结果将不兼容，除非进行转换，这会导致潜在的误解和错误。此外，基本单位在工程、物理和化学等领域也是必不可少的，这些领域对精确测量至关重要。工程师依赖基本单位设计能够承受各种力和条件的结构和系统。在物理学中，研究人员使用基本单位制定描述自然世界的定律和理论。同样，化学家依赖基本单位确定反应中物质的浓度、体积和质量。除了它们的实际应用外，基本单位还具有历史意义。标准化单位的发展始于18世纪，由加布里埃尔·穆顿等科学家领导，后来通过公制的建立得以正式化。这一运动旨在创建一个可以在全球范围内采用的通用测量系统，从而促进科学研究的合作与进步。随着我们走向一个日益全球化的世界，基本单位的重要性继续增长。随着国际研究和技术合作的兴起，拥有共同的测量理解至关重要。例如，在气候科学中，各国研究人员必须共享有关温度变化、海平面上升和温室气体排放的数据。使用基本单位确保每个人在数据解释和政策制定时都在说同一种语言。总之，基本单位的概念是科学及我们日常生活许多方面的基础。它们使准确的测量交流和理解成为可能，这对科学进步和技术创新至关重要。随着我们继续探索宇宙的奥秘，基本单位的作用无疑将继续处于我们努力的前沿，引导我们走向一个更加精确和互联的世界。