metric tensor

例句：

1. 1.In computer graphics, the metric tensor is used to define the distance between points in space.
   在计算机图形学中，度量张量用于定义空间中点之间的距离。
2. 2.The metric tensor is a fundamental concept in differential geometry and Riemannian geometry.
   度量张量是微分几何和黎曼几何的基本概念。
3. 3. The metric tensor is also used in the study of electromagnetic waves, where it represents the propagation of energy through space.
   度量张量还在电磁波研究中使用，它表示能量通过空间的传播。