英:[ə'krəʊmətɪzəm]
美:[ə'kroʊməˌtɪzəm]
英:[ə'krəʊmətɪzəm]
美:[ə'kroʊməˌtɪzəm]
adjective
refracting light without dispersing it into its constituent colors : giving images practically free from extraneous colors
an achromatic telescope
not readily colored by the usual staining agents
possessing no hue : being or involving black, gray, or white : neutral
achromatic visual sensations
being without accidentals or modulation : diatonic
非染色质性
消色差性
全色盲:同monochromatism
a- >entry 2 + Greek chrōmat-, chrôma "color" + -ic >entry 1 (or borrowed directly from Greek chrōmatikós chromatic >entry 1, formed with the same elements)
The first known use of achromatic was in 1754
acidifyverb
to make acid
to change into an acid
acidifyverb
to make acid
to change into an acid
acidicadjective
acid-forming
acid
acid1 of 2adjective
sour, bitter, or stinging to the taste : resembling vinegar in taste
sharp or sour in temper : cross
acid remarks
of, relating to, or having the characteristics of an acid acid indigestion
acid soil
acid2 of 2noun
a sour substance
a compound that usually dissolves in water, has a sour taste, reacts with a base to form a salt, and turns litmus paper red
lsd
achromaticadjective
giving an image practically free from colors not in the object
an achromatic lens
being black, gray, or white
achromaticadjective
giving an image practically free from colors not in the object
an achromatic lens
being black, gray, or white
1 The whole world can guarantee only each time delivers identical color number cotton thread achromatism.
全球唯一能够确保每次产出的同一色号的棉线无色差。
2 The SNR, the antenna condition and the Bragg condition as well as achromatism in optical design are discussed.
讨论了在光学设计中的信噪比要求,天线条件,色差兼容和布喇格条件。
3 So the theoretical basis is provided for optimizing achromatism of the rhomb-type retarder and the material selecting scope can be extended.
从而为优化菱体型相位延迟器的消色差性,扩大材料的选取范围提供理论指导。
4 As compared to common compensators, this compensator is convenient to operate, and has a high degree of accuracy and a good nature of achromatism.
给出一种新的三元复合式消色差补偿器,该补偿器具有调节方便、精度高、在一定波长范围内消色差性能良好等优点。
5 From the characteristic of harmonic relief patterns, the a thermalization and achromatism of harmonic diffractive element have been studied in the paper.
从谐衍射元件的理论出发,讨论了谐衍射透镜在消色差和消热差时的特性。
6 The method for determine sewage's chroma is method of dilution multiple. It's easy to bring in error when using eyes to determine the diluted sample is whether achromatism or not.
污水色度的测定一般采用稀释倍数法,该方法在用人眼判定稀释后的水样是否接近无色时容易引起误差。
7 Most insects, when exposed for any length of time to strong light, fade or lose color, and the only way to prevent such achromatism is to exclude the light.
8 The state or quality of being achromatic; as, the achromatism of a lens; achromaticity.
9 Leonhard Euler in 1747 had suggested that achromatism might be obtained by the combination of glass and water lenses.
10 Thus examined, the departure of the eye from achromatism appears very gross indeed.
11 As the diameter of the lens was so small in comparison with its focal length, its want of achromatism was inappreciable.
12 The absence of this error is termed achromatism, and an optical system so corrected is termed achromatic.
13 He will find that he has not given exactly the proper curves to secure achromatism.
14 Newton failed to perceive the existence of media of different dispersive powers required by achromatism; consequently he constructed large reflectors instead of refractors.
15 A long list of indictments might indeed be brought against the eye—its opacity, its want of symmetry, its lack of achromatism, its partial blindness.
16 In uniting three colours an ``achromatism of a higher order'' is derived; there is yet a residual ``tertiary spectrum,'' but it can always be neglected.
17 If all three constants of reproduction be achromatized, then the Gaussian image for all distances of objects is the same for the two colours, and the system is said to be in ``stable achromatism.''
18 Black is an achromatic shade that creates a feeling of depth and infinite space; an effect further emphasized with a matte finish.
19 Instead, brown, gray, beige and white are dominant, an achromatic palette whose gloomy drabness is only relieved by the surprisingly wide variety of neutrals the artist employs.
20 The achromatic 'philosophical zombie', a syndrome of cerebral achromatopsia with color anopsognosia.