权威例句
Spacetime constraintsSpacetime constraintsExtra spacetime dimensions and unificationSpacetime and Geometry: An Introduction to General RelativitySpacetime and geometry. An introduction to general relativityQuantum Field Theory in Curved SpacetimeBlack hole in three-dimensional spacetime.Thermodynamics of spacetime: The Einstein equation of stateWormholes in spacetime and their use for interstellar travel: A tool for teaching general relativityZeta Function Regularization of Path Integrals in Curved Spacetime