bilinear surface

例句：

1. 1.The bilinear surface is used to calculate the distance between two points on a plane.
   双线性表面用于计算平面上两点之间的距离。
2. 2.In computer graphics, the bilinear surface is used to render objects with smooth textures and gradient colors.
   在计算机图形学中，双线性表面用于渲染具有平滑纹理和渐变色彩的对象。
3. 3. The bilinear surface is a mathematical model that describes the shape of an object in three-dimensional space.
   双线性表面是一种数学模型，用于描述三维空间中物体的形状。