gradient

英 [ˈɡreɪdiənt]

美 [ˈɡreɪdiənt]

n.  (尤指公路或铁路的)坡度，斜率，倾斜度; (温度、压力等的)变化率，梯度变化曲线

复数：gradients　

CET6TOEFL

Collins.1 / BNC.7370 / COCA.14325

牛津词典

noun

• （尤指公路或铁路的）坡度，斜率，倾斜度
  the degree to which the ground slopes, especially on a road or railway
  1. a steep gradient
     陡峭的坡度
  2. a hill with a gradient of 1 in 4 (or 25%)
     倾斜度为1:4（或25%）的小山
• （温度、压力等的）变化率，梯度变化曲线
  the rate at which temperature, pressure, etc. changes, or increases and decreases, between one region and another

柯林斯词典

• N-COUNT 斜坡；坡度；倾斜度
  Agradientis a slope, or the degree to which the ground slopes.
  1. ...a gradient of 1 in 3...
     1比3的倾斜度
  2. The courses are long and punishing, with steep gradients.
     这些赛道既长又有陡坡，极具挑战性。

in AM, usually use 美国英语通常用 grade


• 变化率
  Thegradientof a graph or series of measurements is the rate at which one set of amounts changes in relation to another.

英英释义

noun

• the property possessed by a line or surface that departs from the horizontal
  1. a five-degree gradient
  Synonym:slope
• a graded change in the magnitude of some physical quantity or dimension

双语例句

• We discuss several different definitions of directional derivative and gradient vector.
  讨论了几种不同的方向导数和梯度的定义。
• The combined effect of uplift and denudation upon the temperature gradient can be obtained by formula ( 3.86).
  抬升和剥蚀对温度梯度的联合效应可以根据公式（3.86）进行估定。
• The experiment results show that the method can improve the average gradient and preserve spectrum index commendably.
  实验表明算法有效提高了图像的清晰度和保持了光谱特性。
• And that told us that the flow is proportional to a negative gradient of a concentration.
  这告诉我们，流动是和浓度的负梯度成比例的。
• Interest of each tag contains a time domain and a number of gradient domain.
  每个兴趣项包含一个时间标签域和若干个梯度域。
• Structural stability of hydroxyapatite at high temperature in bioactive gradient coatings was studied.
  重点研究了生物活性梯度涂层中羟基磷灰石高温结构稳定性。
• It has discussed the distributing disciplinarian and controlling factors of geothermal gradient.
  计算了地温梯度，探讨了分布规律和控制因素。
• The courses are long and punishing, with steep gradients.
  这些赛道既长又有陡坡，极具挑战性。
• This scheme is related to the mathematics; the Conjugate Gradient Method ( CGM).
  这项方案涉及到数学中的共轭梯度法（CGM）。
• In the paper, added the gradient information into the image gradation histogram, proposed the gradation-gradient two-dimensional histogram.
  通过对图像的灰度直方图中加入它的梯度信息，提出了灰度-梯度的二维直方图。