1. In mathematics, a bilinear map is a function of two variables that is linear in each variable separately.
在数学中，双线性映射是一个具有两个变量的函数，它在每个变量上都是线性的。

2. The bilinear interpolation method is commonly used in image processing to resize images smoothly.
双线性插值法常被用于图像处理中平滑调整图片大小。