例句與造句

1. In the context of an asymptotically flat spacetime, the boundary conditions are given at infinity.
2. For a general asymptotically flat spacetime containing radiation ( Petrov Type I ), \ Psi _ 1 & \ Psi _ 3 can be transformed to zero by an appropriate choice of null tetrad.
3. It is possible ( at least in an asymptotically flat spacetime ) to choose the coordinates in such a way that this quantity satisfies the de Donder gauge condition ( conditions on the coordinates ):
4. For a static and asymptotically flat spacetime, the normalization should be chosen so that k ^ a k _ a \ rightarrow-1 as r \ rightarrow \ infty, and so that \ kappa \ geq 0.
5. In this case, we can say that an asymptotically flat spacetime is one in which the gravitational field, as well as any matter or other fields which may be present, become negligible in magnitude at large distances from some region.
6. It's difficult to find asymptotically flat spacetime in a sentence. 用asymptotically flat spacetime造句挺難的
7. An "'asymptotically flat spacetime "'is a Lorentzian manifold in which, roughly speaking, the curvature vanishes at large distances from some region, so that at large distances, the geometry becomes indistinguishable from that of Minkowski spacetime.
8. A simple example of an asymptotically flat spacetime is the Schwarzschild-de Sitter lambdavacuum solution ( sometimes called the K鰐tler solution ), which models a spherically symmetric massive object immersed in a de Sitter universe, is an example of an " asymptotically simple " spacetime which is not asymptotically flat.