annular disk造句

例句与造句

1. Although reflection from the rings increases Saturn's annular disk with concentric local maxima and minima in density and brightness.
2. Upon further magnification, it is visible as a slightly elliptical annular disk that gets darker towards the center, with a magnitude 13.2 central star.
3. It's difficult to find annular disk in a sentence. 用annular disk造句挺难的