| 词汇 | photometry |
| 释义 | photometry noun[ U ] physics specializeduk /fəʊˈtɒm.ə.tri/ us /foʊˈtɑː.m.ə.tri/ the measurement of the strength of light光度测定，测光法;光度学 Physics in general accelerator acoustician acoustics Archimedes cathode ray dynamics ferromagnetism frequency fundamental frequency harmonic multifrequency physical physicist physics post-Einsteinian quantum mechanics sine curve sinusoid sinusoidal spectroscopy Examples of photometryphotometry The physiological basis of heterochromatic flicker photometry demonstrated in the ganglion cells of the macaque retina. The second method employs ultra-high precision photometry of the transits to detect the deviations caused by the presence of exoplanetary moons. Given the methods used in photometry the absolute values could be in error by 0.2 log. Isoluminance was determined for each stimulus using minimum flicker photometry. This definition is based on heterochromatic flicker photometry. Spectral efficiency measured by heterochromatic flicker photometry is similar in human infants and adults. Potassium was determined on a separate aliquot of the sample by flame photometry. As in classical flicker photometry, one of these serves as reference light while the other is a test light. Spectral absorbance and spatial distribution of macular pigment using heterochromatic flicker photometry. Isoluminance was determined for each axis and each subject using heterochromatic flicker photometry for a central circular 1-deg stimulus. Maturation of visual pathways of heterochromatic flicker photometry demonstrated in the ganglion cells of the macaque retina. Isoluminance was determined for a 1-deg circular field for every subject using flicker photometry. It is clear that these methods should be restricted to situations with moderately complex photometry combined with semantic complexity. For that purpose, electroretinogram flicker photometry was used to obtain complete spectral sensitivity functions from 60 heterozygous female monkeys drawn from seven genera of platyrrhine monkeys. Precise photometry could detect the transit signature of the moon in the transit profile of the massive planet. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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