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 brightness ['braitnis]   添加此单词到默认生词本
n. 光亮, 明亮, 聪明

[计] 亮度

[化] 亮度


  1. The light hurt my eyes with its brightness.
    明亮的灯光刺痛了我的眼睛。
  2. Stars vary in brightness.
    星星光亮度不同。
  3. A unit of retinal illumination, equal to the amount of light that reaches the retina through 1 square millimeter of pupil area from a surface having a brightness of 1 candela per square meter.
    光度视网膜亮度单位，相当于每平方米有一烛光亮度的表面，通过一平方毫米的瞳孔区域，到达视网膜的光线数量


brightness
[ noun ]
  1. the location of a visual perception along a continuum from black to white

    2. <noun.attribute>
  2. intelligence as manifested in being quick and witty

    3. <noun.cognition>
  3. the quality of being luminous; emitting or reflecting light

    4. <noun.attribute>
    its luminosity is measured relative to that of our sun


Brightness \Bright"ness\, n. [AS. beorhines. See {Bright}.]
1. The quality or state of being bright; splendor; luster;
brilliancy; clearness.

A sudden brightness in his face appear. --Crabbe.

2. Acuteness (of the faculties); sharpness 9wit.

The brightness of his parts . . . distinguished him.
--Prior.

Syn: Splendor; luster; radiance; resplendence; brilliancy;
effulgence; glory; clearness.

  1. None of the discovered planets could actually be seen by the astronomers because they are blotted out by the brightness of the stars.
  2. During Saito's first two-year term, which began in 1986, he had been considered a lucky optimist exemplified by his philosophy: "Seek for brightness and do not look at darkness."
  3. Astronauts also will photograph the sky immediately after sunset and after sunrise to measure the brightness of Earth's atmosphere at those times.
  4. But lately, every new square inch of newly bared brightness provokes a shriek of outrage from a small group of standpatters, mostly non-specialists, who want to keep their Michelangelo in the dark.
  5. By measuring the relative brightness of each part, the camera can calculate the best exposure and compensate automatically for strong lighting in front or back of the subject, he said.
  6. Voyager also used a light sensor Tuesday to look for variations in Triton's surface brightness, providing clues to the moon's structure and makeup.
  7. Fresh Art, the second annual show by graduates at UK arts colleges, looked like being as depressing and imitative as the original exhibition a year ago. But inside it is almost brightness and light.
  8. Each time the path wiggled the electrons gave off radiation to produce greater brightness.
  9. In the latest glitch, the telescope was looking for two stars of a certain brightness in the star cluster, but failed.
  10. He hopes to learn why Io changes in brightness when it moves in and out of the frigid shadow of Jupiter.
  11. After all, television inspired USA Today's brevity and brightness, the color weather maps and abundant news-blurbs that got it labeled the "McPaper" of fast-food journalism.
  12. Certainly the recordings have an appealing brightness. Pavilion Records is another company that specialises in re-issuing vintage recordings.
  13. The problem with flat-screen displays in laptop computers and hand-held TVs is that they can't match the old cathode-ray tube in brightness, contrast or speed of image movement.
  14. Whenever she redecorated one of her homes she would lay the new upholstery and curtains out on the lawns leaving the elements to undermine the manufactured brightness.
  15. While acknowledging "these are not easy days," Bush smiled and clapped his hands to the tunes of the Oak Ridge Boys and thanked them for bringing a "touch of joy, touch of brightness" to the White House.
  16. Another instrument, a photometer, will be able to measure stellar brightness and to look for black holes.
  17. "This is still a very high-tech field which needs more improvement in cost and brightness and so on."
brightness
brightness acuity
brightness adaptatson
brightness adaption
brightness beat
brightness beats
brightness blink
brightness calibration
brightness channel
brightness coefficient
brightness conservation
brightness constancy
brightness contour
brightness contrast
brightness contrast b...
brightness contrast r...
brightness control
brightness controller
brightness curve
brightness decay
brightness discrimina...
brightness discriminaton
brightness distortion
brightness distribution
brightness distributi...
brightness enhancing
brightness flicker
brightness fluctuation
brightness gain
brightness impression
brightness intelligence
brightness level
brightness matching
brightness measurement
brightness meter
brightness modulation
brightness multiplica...
brightness noise
brightness of aurora
brightness of display...
brightness of screen
brightness of white f...
brightness pulse
brightness range
brightness ratio
brightness regulator
brightness reversion
brightness ring
brightness scale
brightness scanning
brightness sensation
brightness separation
brightness signal
brightness signal det...
brightness stabilizer...
brightness standard
brightness step
brightness temperature
brightness test
brightness test chart
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