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humidity    音標拼音: [hjum'ɪdəti]
n. 濕氣,潮濕,濕度

濕氣,潮濕,濕度

humidity
濕度

humidity
n 1: wetness in the atmosphere [synonym: {humidity}, {humidness}]

Humidity \Hu*mid"i*ty\, n. [Cf. F. humidit['e].]
1. Moisture; dampness; a moderate degree of wetness, which is
perceptible to the eye or touch; -- used especially of the
atmosphere, or of anything which has absorbed moisture
from the atmosphere, as clothing.
[1913 Webster]

2. Specifically: The content of water vapor in the air,
expressed as a percent of the maximum amount of water
vapor that the air can hold at the given temperature; also
called {relative humidity}. The capacity of the air to
hold moisture increases with temperature, so if the
temperature changes without changing the absolute content
of the atmospheric moisture, the relative humidity will
also change.
[PJC]

{relative humidity} Same as {humidity}[2].
[PJC]

Note: In hygrometrical reports (as of the United States
Signal Service) complete saturation of the air by water
vapor is designated by a relative humidity of 100, and
its partial saturation by smaller numbers in direct
proportion to the actual content of water vapor.
[1913 Webster]

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英文字典中文字典相關資料:
  • Humidity - Wikipedia
    Humidity is the concentration of water vapor present in the air Water vapor, the gaseous state of water, is generally invisible to the human eye [2] Humidity indicates the likelihood for precipitation, dew, or fog to be present Humidity depends on the temperature and pressure of the system of interest
  • What Is Humidity and How Does Humidity Affect Temperature?
    Absolute humidity measures the actual amount of water vapor in the air, regardless of the air temperature It’s the literal grams of water vapor per cubic meter of air Relative humidity, on the other hand, is a percentage comparing the current amount of water vapor in the air to the maximum amount the air can hold at a given temperature
  • What is humidity and why does it make us feel so uncomfortable?
    Humidity is a measurement of the amount of water vapour in the air Warmer air can hold more water vapour than cooler air, if there is plenty of water available
  • What is humidity? Why measure what your levels mean - Airthings
    Humidity is a measure of the amount of water vapor in the air Relative humidity measures the amount of water in the air in relation to the maximum amount of water vapor (moisture) The higher the temperature, the more water vapor the air can hold
  • What Is Humidity? | NOAA SciJinks – All About Weather
    Humidity is a measure of water vapor in the air Meteorologists typically describe water vapor in the atmosphere in two different ways: absolute humidity and relative humidity Dew point is an absolute measure and helps us understand how muggy and humid it feels outside
  • What Does Humidity Percentage Mean and What Is High Humidity?
    Find out what the humidity percentage means, the difference between relative and absolute humidity, and how high humidity affects our lives
  • Humidity | Atmospheric Effects, Measurement Control | Britannica
    Humidity, the amount of water vapour in the air It is the most variable characteristic of the atmosphere and constitutes a major factor in climate and weather A brief treatment of humidity follows
  • How Humidity Can Be Dangerous for Older Adults - AARP
    Instead of the threshold being 95 degrees at 100 percent humidity or 115 degrees at 50 percent humidity, researchers found it was 87 degrees at 100 percent humidity and nearly 104 degrees at 50 percent humidity This was in young, healthy people Knowing this could help people take better care of themselves in high heat, his team wrote
  • What Is Humidity? (with pictures) - AllTheScience
    Humidity is the amount of moisture present in the air, and it can change depending upon the time of year and whether there is active precipitation Relative humidity is the percentage of moisture that actually exists relative to the amount that could exist
  • Heat and Humidity Wave Across America: 6 Tips to Stay Safe - TODAY
    Heat is the No 1 cause of weather-related death in the U S Understanding how heat and humidity affect your health and knowing how to protect yourself can help prevent some of the serious





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