cotangent space

例句：

1. 1. The cotangent space is a region of space that lies between two surfaces and has the same normal vector as the surface.
   切线空间是两个表面之间的区域，其法向量与表面相同。
2. 2. In physics, the cotangent space is used to describe the behavior of particles in motion.
   在物理学中，切线空间用于描述粒子在运动中的行为。
3. 3. The cotangent space is an important concept in differential geometry, where it plays a crucial role in definingthe structure of spaces.
   在微分几何中，切线空间是一个重要概念，它在定义空间结构中起着关键作用。