kelvins

['kɛlvɪnz]

noun

Kelvins is a noun that refers to a unit of measurement of temperature, one of the seven base units in the International System of Units. The kelvin is defined as the fraction 1/273.16 of the thermodynamic temperature of the triple point of water (exactly 0.01 degree Celsius or 32.018 degrees Fahrenheit). It is named after William Thomson, also known as Lord Kelvin, who proposed it in 1848.

1. Kelvins是一个名词，指的是温度的单位，是国际单位制中七个基本单位之一。开尔文被定义为水的三相点温度（恰好为0.01摄氏度或32.018华氏度）的1/273.16。它是以威廉·汤姆森（也被称为开尔文勋爵）命名的，他在1848年提出了这个单位。

2. How to read: [kɛlvɪnz]

3. Usage: Kelvins is used to measure temperature in scientific and engineering fields, especially in thermodynamics and metrology.

4. Example sentences:

1) The temperature on Mars can drop below -100 degrees Kelvins at night.

火星上的夜晚温度可以低于零下100开尔文。

2) The ideal gas law states that at constant pressure, volume and number of moles, the Kelvin temperature is directly proportional to its absolute temperature.

理想气体定律表明，在恒定压力、体积和摩尔数下，开尔文温度与绝对温度成正比。

3) The Kelvin scale is often used in scientific experiments to avoid negative temperatures.

开尔文温标经常被用于科学实验中，以避免负数温度。

4) The Kelvin temperature scale is named after the famous physicist, William Thomson.

开尔文温标是以著名物理学家威廉·汤姆森命名的。

5) In order to convert from Celsius to Kelvins, simply add 273.16 to the Celsius temperature.

要从摄氏度转换为开尔文，只需将摄氏温度加上273.16即可。

5. Synonyms and usage: Kelvins can also be referred to as degrees Kelvin or K. It is often used interchangeably with degrees Celsius (°C) in scientific contexts, but it is important to note that they are not the same unit of measurement. While the kelvin scale starts at absolute zero, the Celsius scale starts at the freezing point of water (0°C). Therefore, 0°C is equal to 273.15K.

6. Editor's summary: Kelvins is a unit of measurement for temperature and is named after Lord Kelvin who proposed it in 1848. It is commonly used in scientific and engineering fields and is defined as 1/273.16 of the thermodynamic temperature of water's triple point. It can be converted from Celsius by adding 273.16 and should not be confused with degrees Celsius as they have different starting points on their respective scales.