1.
A scar on the earth's surface left from the impact of a meteorite.
陨星坑陨石对地表冲击所造成的痕迹
2.
Small meteorites have left impact craters all over the planet’s surface.
这个行星的表面布满了小块陨石留下的撞击坑。
3.
What caused this unusual looking crater floor on Mars?
火星这个奇特的陨石坑底到底是怎麽形成的？
4.
Mercury is covered in craters - hollows made by huge space rocks crashing into it.
水星的表面有许多陨石坑，这些坑是由巨大的太空岩石撞击而成的。
5.
Heavily-cratered Callisto is only a little smaller than Ganymede and, like Europa, might be hiding a subterranean ocean.
布满陨石坑的克利斯托星仅仅稍小于格尼梅德星，它可能与欧罗巴星相似,蕴藏着地下海洋。
6.
The high-resolution beam would enable researchers to investigate the formation of individual asteroid craters and canyons, for example.
这种高分辨率粒子束能使研究人员分析出例如单一的、星形的陨石坑和峡谷的组成。
7.
A tiny particle of meteoric dust, especially one of many that fall to the surface of the earth or moon.
微陨星微小的陨星颗粒，特指大量坠向地球或月球表面的微陨星
8.
The meteor shot across the sky.
陨星迅速掠过天空。
9.
meteorite hypothesis
陨星假说-太阳系起源
10.
Barringer crater is 1.2km in diameter.
巴林杰陨石坑的直径有1.2千米。
11.
A small round granule of extraterrestrial origin found embedded in some meteorites.
陨星粒养体嵌在某些陨星上的来自行星际的小圆颗粒
12.
When planets are bombarded by asteroids or comets,
当星球被陨石或彗星连续撞击时，
13.
We should expect to see some meteors or shooting stars.
我们可以期望看到一些陨星或流星。
14.
Images taken of the same areas over time showed investigators that liquid water likely flowed through gullies in Martian craters during the past seven years.
从同一地点数次拍摄的照片向调查员显示出在过去的7年中似乎有液态水流过火星陨石坑的山谷。
15.
Craters reveal valuable information about the composition of a planet's surface and subsurface. Measuring the number of impacts also allows scientists to estimate a surface's age.
陨石坑能反映出关于行星地表和地下的有价值的信息。碰撞的次数也能让科学家们估计地表年代。
16.
To infer, the Guangzhou city belongs to the spread area of probable meteorite craters.
据此推测，广州市区属疑似陨石坑分布区。
17.
Explanation: What lies at the bottom of Hyperion's strange craters?
( 说明：土卫七奇异的陨石坑底，到底藏了些什麽？
18.
Crater Region Detection Based on Census Transform and Boosting
基于Census变换和Boosting方法的陨石坑区域检测