mid-15c. (implied in speckled), probably related to Old English specca "small spot, speck" (see speck) or from a related Middle Dutch or Middle High German word. Related: Speckled; speckling. The noun is first attested mid-15c.
雙語例句
1. For example, in holographic imagery the speckle pattern corresponds to troublesome background noise.
例如, 在全息照相中,斑紋圖樣相當(dāng)于討厭的背景噪聲.
來自辭典例句
2. Laser speckle interferometry is a new technique in latter - day optics.
激光散斑干涉法是近代光學(xué)的一項新技術(shù).
來自互聯(lián)網(wǎng)
3. Speckle noise can be eliminated by nonlinear filter designed by wavelet transform.
小波非線性濾波器還可消除散斑噪聲.
來自互聯(lián)網(wǎng)
4. Star on one ^ s body speckle be really Lei Ren!
明星身上的斑真是雷人!
來自互聯(lián)網(wǎng)
5. Objective To establish a novel speckle tracking algorithm for estimating myocardial motion.