scalar-tensor theory

例句：

1. 1.In scalar-tensor theory, the stress tensor is a key component of the theory.
   在标量场论中，应力张量是理论的关键组成部分。
2. 2.The scalar-tensor theory has been applied to various fields of study, such as physics and engineering.
   标量场论已被应用于物理学和工程学等各个领域。
3. 3. The scalar-tensor theory provides a framework for understanding the behavior of matter and energy inspacetime.
   标量场论为理解物质和能量在时空中的行为提供了一个框架。