Từ tiếng Anh cho "Đo lường" | Từ Vựng C2

photometry

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Đóng

Đăng nhập

(quang phổ học)

đo sáng

the scientific measurement of light in terms of its intensity, color, and other properties

Ví dụ

Click on words

The astronomer used photometry to determine the luminosity of distant stars by measuring their light intensity.

In the laboratory, researchers applied photometry techniques to analyze the color spectrum of light emitted by various chemical reactions.

What is "photometry"?

Photometry is the science of measuring the intensity of light. It involves determining how much light is emitted, reflected, or transmitted by an object or source. This process is important in various fields, including photography, astronomy, and lighting design, to ensure accurate lighting conditions and quality. Photometry helps in evaluating how bright a light source is and how it will appear in different settings.

altimeter

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(máy đo độ cao)

thước cao độ

an instrument used to measure and indicate the altitude of an object above a fixed level, typically the Earth's surface

anemometer

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(thiết bị đo gió)

gió kế

a device used to measure the speed and direction of the wind

ampere

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(ampe (đơn vị đo dòng điện))

ampe

the unit of electric current, symbolized as "A" in the International System of Units (SI)

barometer

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(thước đo khí áp)

bao áp suất

a scientific instrument used to measure air pressure

karat

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(cara)

karat

a unit to measure the purity of gold, the purest gold being 24 karats

What is a "karat"?

A karat is a unit of measurement used to denote the purity of gold, with one karat being equal to 1/24th of the whole. Therefore, 24-karat gold is considered to be pure gold. The higher the karat number, the higher the percentage of gold in the item. For example, 18-karat gold contains 75% gold, while 14-karat gold contains 58.3% gold. Karat is also used as a term to describe the weight of gemstones, with one karat equal to 0.2 grams. The term "carat" is sometimes used interchangeably with "karat," but carat is generally used to describe the weight of diamonds and other gemstones, while karat is used to describe the purity of gold.

perimeter

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(đường viền)

chu vi

the total length of the external boundary of something

hypsometry

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(hypsometry)

địa độ học

the measurement of land elevation variations comparing to sea level or a chosen reference point

hydrometry

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(Đo đạc thủy lực)

Thủy văn học

the measurement and analysis of water flow, levels, and properties in natural bodies of water and hydraulic systems

spectrometry

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(kỹ thuật quang phổ)

phép quang phổ

the measurement and analysis of the spectrum of electromagnetic radiation emitted or absorbed by substances

voltmeter

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(đồng hồ điện áp)

thế kế điện áp

a device used to measure the electric potential difference between two points in an electrical circuit

manometer

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(máy đo áp suất)

manometer

a device used to measure the pressure of gases or liquids in a closed system, typically by comparing it to atmospheric pressure

thermocouple

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(cảm biến nhiệt điện)

cặp nhiệt điện

a temperature sensor that generates electricity based on heat

metrology

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(metrology)

khoa đo lường

the scientific study of measurement, including the development of measurement standards and techniques

calorimetry

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(nhiệt lượng học)

đo nhiệt lượng

the scientific measurement of heat exchange in chemical or physical processes

gravimetry

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(đo đạc trọng lực)

đo trọng lực

the measurement of variations in gravitational fields to understand the Earth's structure and properties

luminance unit

Danh từ

/lˈuːmɪnəns jˈuːnɪt/

(đơn vị bức xạ ánh sáng)

đơn vị độ sáng

a measure of the brightness of a light source as perceived by the human eye

Thông Tin Ngữ Pháp:

Danh Từ Ghép

densitometry

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(phép đo độ dày)

độ đậm

the process of measuring how dense something is by assessing how much light it absorbs or transmits

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