例句與造句

1. The density of impact craters is used to determine the surface ages of Mars and other solar system bodies.
2. It also explains the younger surface age of the northern plains, as determined by significantly lesser crater density.
3. Virtually no impact craters have been found on or near the tiger stripes, suggesting a very young surface age.
4. The northern plains are several kilometers lower in elevation than the southern highlands, and have a much lower crater density, indicating a younger surface age.
5. Surface age estimates based on crater counting yielded an age of 4 100 million years assuming a lunar-like cratering flux and 0.5-1 million years assuming a constant cratering flux.
6. It's difficult to find surface aging in a sentence. 用surface aging造句挺難的
7. They also revealed a surface with different regions with vastly different surface ages, with a heavily cratered mid-to high-northern latitude region, and a lightly cratered region closer to the equator.
8. Pluto is one of the most contrastive bodies in the Solar System, with as much contrast as Saturn's moon Io with slightly more orange, significantly less red than Mars . " New Horizons " found that Pluto's surface age is equally variable, with ancient, dark, mountainous terrain ( such as Cthulhu ) being found alongside the bright, flat, effectively craterless Sputnik Planitia and various terrains of intermediate age and color.