subtracts

英 [səbˈtrækts]

美 [səbˈtrækts]

v.  减; 减去
subtract的第三人称单数

柯林斯词典

• VERB 减;减去
  If yousubtractone numberfromanother, you do a calculation in which you take it away from the other number. For example, if you subtract 3 from 5, you get 2.
  1. Mandy subtracted the date of birth from the date of death...
     曼迪用去世的日期减去出生的日期。
  2. We have subtracted $25 per adult to arrive at a basic room rate.
     我们已给每位成人房客减去了 25 美元，这就是基本的房费价格了。

双语例句

• Because of tracking under static background whose the background is fixed, so long as the background is real-time updated at different times, then the current frame subtracts the background image to realize target tracking.
  当在静态背景情况下进行目标跟踪时，只要实时的更新不同时刻的静态背景，然后再用当前帧减去背景图像即可提出被跟踪的目标。
• He adds, subtracts, divides, he multiplies the possibilities, even the possibilities that come out of your pain.
  他加减乘除，他乘大可能性，即使在痛苦中也充满可能。
• It exploits the poverty of the coupling matrix to a uniform linear array ( ULA), subtracts two subarrays with the same structures and coupling characteristic, estimates the DOAs using ESPRIT and then obtains the coupling parameters in the Least-Square ( LS) sense.
  利用了均匀线阵互耦矩阵的特点，在阵列中找出互耦结构相同的两个子阵，利用ESPRIT方法得到角度估计，再从最小方差（LS-Leastsquare）拟合出发获得互耦参数的估计。
• A businessman usually subtracts his costs from his gross profits.
  通常商人从毛利中减去他的成本。
• Adds the first and second arguments, then subtracts their product from the sum.
  将第一个参数和第二个参数相加，然后从和中减去它们的乘积。
• Getting a grade like a B-plus or a C-minus adds or subtracts a few tenths of a point.
  B+或C-意味着在每个分数上加上或减去几个0.1分。
• It subtracts the flow of the information on the Internet and improves the performance of the network information processing.
  它可以有效减少网络信息流量，提高网络信息处理的性能。
• Background subtraction is a commonly used moving objects detection method, it subtracts the background model which is stored beforehand or observed in time from the current frame, by threshold operation getting moving objects.
  减背景技术是一种常用的运动对象检测方法，其基本思想是将视频中当前帧图象与事先存储的或实时得到的背景模型相减，通过阈值操作，得出运动区域。
• That subtracts nothing from his merit.
  那丝毫也没有减损他的功绩。
• Each virtual-loop's output signals mainly derive from the pixel difference between consecutive image frames within the virtual-loop area. When the result of consecutive frame difference is smaller than the threshold, current frame subtracts the background to produce the virtual-loop's signals.
  各个虚拟线圈的输出信号主要来源于帧间差分，当帧间差分的结果小于判断阈值时，系统会自动调用减背景图像处理方法来产生虚拟线圈信号。