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n.磨顶槽
v.形成弹坑；[地质]成坑（crater的现在分词）
1、cratering velocity───弹坑速度
1、The surface of Mars shows a wide range of geologic features, including huge volcanoes—the largest known in the solar system—and extensive impact cratering.───火星表面显示出广泛的地质特征，包括巨大的火山——太阳系中已知的最大的火山——和广阔的撞击坑。
2、Failure: Pitting , cratering, or erosion of the surface. Obvious and significant deterioration.───失败：表面出现斑痕、凹或侵蚀，明显且重要的材料损毁。
3、Another prominent feature of Mars's surface is cratering.───火星表面的另一个显著特征是它的凹凸不平。
4、Cratering will generally result from an underground burst, just as for a surface burst.───和地面爆炸类似，地下爆炸通常会产生地面落坑。
5、Congress enacted a major stimulus plan to keep the economy from cratering.───国会通过了主要的刺激计划，以使经济不致于百孔千疮。
6、In the case of corrosion in the solution of acid is too small to receive the slope, not 2, smooth, rough, corrosion slow cratering.───如腐蚀液中酸过少则去出现坡度平，不光洁、毛糙，腐蚀慢等弊病。
7、As on the Moon, the extent of large impact cratering serves as an age indicator for the Martian surface.───和在月球的一样，大型撞击陨石坑的范围之广可以显示出火星表面的年龄。
8、China's credit lines also are propping up investment in natural resources, keeping global supplies from cratering as investment dries up.───中国还为投资自然资源行业提供了信贷支撑，在全球投资趋于枯竭之际令能源供应不致萎缩。
9、Included the " Sedan " test, a cratering experiment as part of Operation Plowshare.───包括作为行动的一部分的“轿车”的考验，缩孔实验犁铧。
1、Failure: Pitting , cratering, or erosion of the surface. Obvious and significant deterioration.
2、Such processes may include impact cratering, volcanism, glacial and periglacial geomorphology.
3、These in turn merge gradually into dark circles and bright outer rings with no evidence of impact cratering.
4、Outline the distinction between exposure and resultant cratering and the factors which make them different from each other.
5、In comparing craters on different bodies the distinction must be made between the exposure of a planet and the resultant cratering.
6、Check the page without pinhole, bubble cratering and fix it.
7、They further suggest that we are presently living in a time of enhanced cratering activity.
8、Based on the refractive law of waves, the author presents a mathematical model describing the ejective direction of any particle in cratering.