现在我们看看其中最大的长方形面积，然后与最小的长方形面积相减。

Now take the area of the largest rectangle, and subtract the area of the smallest.

加密图像和随机二值实振幅掩模相减，相减后的光强分布可以重建原图像。

The image to be encrypted can be reconstructed by subtracted key codes from the encrypted date.

算法提高了谱减法的适用范围,还在一般谱相减方法的基础上提出了改进的谱相减算法.

The application range of the spectral subtraction is expanded by the new noise estimation method.

讨论了一种基于传统谱相减算法的改进方法。

In this paper, an improved voice quality enhancement algorithm based on traditional spectrum subtraction method is discussed.

该文提出了基于分数阶谱相减的语音增强法。

A method based on fractional spectral subtraction for speech enhancement is proposed.

尤其通过中间和侧面前额皮质大脑活动，研究者能判断志愿者做数学题时是决定将两个数字相加还是相减。

Specifically, the researchers determined whether a volunteer decided to add or subtract two numbers in a math exercise from patterns of brain activity in the medial and lateral prefrontal cortex.

其次，我们从前面可以看到，指针可以和整数进行相加或相减运算。

Second, we have already observed that a pointer and an integer may be added or subtracted.

减法——减去，被相减

Reduction -- minous, reduced by