dynamic parallax造句

例句与造句

1. Dynamic parallax has sometimes also been used to determine the distance to a supernova, when the optical wave front of the outburst is seen to propagate through the surrounding dust clouds at an apparent angular velocity, while its true propagation velocity is known to be the speed of light.
2. It's difficult to find dynamic parallax in a sentence. 用dynamic parallax造句挺难的