英:[b'lækbədɪ]
美:[b'lækbədɪ]
英:[b'lækbədɪ]
美:[b'lækbədɪ]
black·bod·y
blaek ba di
复数:blackbodies
Noun
1. a hypothetical object capable of absorbing all the electromagnetic radiation falling on it;
"a black body maintained at a constant temperature is a full radiator at that temperature because the radiation reaching and leaving it must be in equilibrium"
黑体
对入射辐射完全吸收而与其波长、入射方向及偏光状态无关的一种理想辐射体。
The first known use of blackbody was in 1712
blackguardnoun
a rude or dishonest person
blackguardnoun
a rude or dishonest person
blackguardnoun
a rude or dishonest person
blackflynoun
a two-winged fly that bites and whose larvae live in flowing streams
black1 of 3adjective
of the color black
very dark
of or relating to any of various population groups that are often considered to have dark skin but that in fact have a wide range of skin colors
Black people
of or relating to Black people and especially to African American people and their culture
Black literature
very sad or gloomy
the outlook was black
sullen sense 1a
evil entry 1 sense 1, wicked—used in the past especially in literature
a black deed
characterized by grim or distorted humor
black2 of 3noun
a black pigment or dyeespecially: one consisting largely of carbon
the characteristic color of soot or coal
black clothing
dressed in black
a black animal (as a horse)
a person belonging to any of various population groups especially of African ancestry that are often considered to have dark pigmentation of the skin but in fact have a wide range of skin colors
African American
absence of light : darkness
the black of night
the condition of making a profit
in the black
black3 of 3verb
blacken sense 1
black1 of 3adjective
of the color black
very dark
of or relating to any of various population groups that are often considered to have dark skin but that in fact have a wide range of skin colors
Black people
of or relating to Black people and especially to African American people and their culture
Black literature
very sad or gloomy
the outlook was black
sullen sense 1a
evil entry 1 sense 1, wicked—used in the past especially in literature
a black deed
characterized by grim or distorted humor
black2 of 3noun
a black pigment or dyeespecially: one consisting largely of carbon
the characteristic color of soot or coal
black clothing
dressed in black
a black animal (as a horse)
a person belonging to any of various population groups especially of African ancestry that are often considered to have dark pigmentation of the skin but in fact have a wide range of skin colors
African American
absence of light : darkness
the black of night
the condition of making a profit
in the black
black3 of 3verb
blacken sense 1
blackenverb
to make or become dark or black
to hurt the reputation of
blackbodynoun
a body or surface that absorbs all radiant energy falling upon it with no reflection
1 A blackbody is a convenient, ideal emitter that approximates the behavior of many materials when heated.
2 The greenhouse effect can be explained easily if you understand the laws of blackbody radiation.
3 The design principle of blackbody swallow tail cavity is discussed, its blackbody simulating mathematic equations and the geometric parameters of cavity are given.
讨论黑体燕尾腔的设计原理,写出它的黑体模拟数学式,给出适用腔体的几何参数。
4 Can you explain why astronomers call such an object a blackbody?
5 Using the quantization of oscillators, Planck was able to correctly describe the experimentally known shape of the blackbody spectrum.
6 Alpher and Herman predicted that the glow from the fireball should now be at radio wavelengths and should resemble the radiation from a blackbody at a temperature only a few degrees above absolute zero.
7 Physicists derived mathematical expressions for the blackbody curves using well-accepted concepts from the theories of classical mechanics and classical electromagnetism.
8 Evaluate the uncertainty of blackbody radiation, and the result corresponds the designed request.
再对该黑体辐射源进行了不确定度评定,评定结果符合设计的要求。
9 The theoretical expressions as functions of temperature fit the observed experimental blackbody curves well at longer wavelengths, but showed significant discrepancies at shorter wavelengths.
10 The inverse blackbody radiation problem is used for determining the area-temperature distribution of a blackbody from measured total radiated power spectrum.
黑体辐射反问题就是利用测量的黑体辐射能量谱确定黑体的区域温度分布。
11 Frequency is the rate at which a vibration occurs that constitutes a wave, Planck discovered the concept of blackbody radiation.
12 A blackbody radiator will therefore appear black in all inertial frames.
一个辐射黑体在一切惯性系中都呈现黑色。
13 The physical principle of infrared measuring temperature is blackbody radiation law.
红外测温的物理基础是黑体辐射定律。
14 To calculate the Earth’s average surface temperature, you can use the Stefan-Botzman Law for a blackbody.
15 These continuous spectra can often be approximated by blackbody radiation curves at some appropriate temperature, such as those shown in Figure 6.10.
16 One of the well-known historical examples involves the discovery of the Planck spectrum of blackbody radiation, which could not have been explained by classical physics and which ushered in quantum mechanics.
17 A blackbody furnace of heat-pipe surface source with large aperture was developed for the calibration of infrared image optical systems.
针对红外成像光学系统校正,研制了大口径热管面源黑体炉。
18 Without observing the inner side of the practical blackbody, the axial reflectivity is maximum, and the reflectivity decreases as the angle that departs from axis increases.
在没有观测到侧壁的前提下,其轴向反射率最大,随着偏离轴线角度的增加,反射率逐渐减小。
19 One way to calculate the radius of a star is to use its luminosity and temperature and assume that the star radiates approximately like a blackbody.
20 It’s also used to calculate the distribution of energies for a blackbody (an object that gives off light due only to its temperature), and for the uncertainty principle that gives a relation between measurements of position and momentum.
1 黑体