撞击坑

This is probably what happened to the asteroid Vesta, which has a very large impact crater and no water.

这可能发生在了小行星 Vesta上，因为它就有个非常大的撞击坑，同时没有水。

By applying Baldwin's equation, the depth of such a crater should be about 20km.

通过分析鲍文的方程，这样大的撞击坑的深度应该在20公里左右。

Based on the measured depth of smaller lunar crater. Baldwin's equation gives the depth of the zone of brecciation for such a crater as about 75km.

基于经过测量的小一些的月球撞击坑的深度，鲍文的方程给出了合成角砾岩地区同样的撞击坑的深度是75公里。

Because Dione is relatively small, an impact causing a 35 kilometer crater could have spun the satellite.

由于土卫四比较小，在受到比较大的撞击（撞击坑大于35千米）时它会被转动。

Since there are many craters larger than 35 kilometers, Dione could have been repeatedly spun during its early heavy bombardment.

由于土卫四表面有许多大于35千米的撞击坑，因此它在早期撞击率比较高时可能不断被转动。

Diviner was commanded to observe the impact site on eight successive orbits, and obtained a series of thermal maps before and after the impact at approximately two hour intervals at an angle of approximately 48 degrees off nadir.

预言家的任务是经过连续八次变轨观测撞击坑，并且大约每两小时为间隔，从大约48度的天底倾角位置获取撞击前和撞击后整个系列的热成像地图。

However, if we accept the hypotheses of formation of some of the mare basins by impact, the maximum lunar impact crater diameter is probably as large as 650km.

然而，如果我们接受了月球表面阴暗盆地是由撞击产生的假设，那最大的月球撞击坑直径可能会是650公里。

In the case of the demise of the dinosaurs, scientists have a smoking gun, an impact crater that suggests dinosaurs were wiped out as the result of a large asteroid crashing into the planet.

至於灭亡的恐龙，科学家们有一个冒烟的枪，一个撞击坑表明恐龙的灭绝是由於一个大的小行星撞击地球。

On the basis of summarizing scientific goals of lunar exploration and analyzing distribution characteristics of landing sites, the authors chose three craters of Copernicus, Kepler, and Aristarchus in KREEP rock distribution area as candidate landing sites.

克里普岩对于研究月球的起源和演化有重要意义，但由于该岩石被玄武岩所覆盖，难以利用轨道探测器开展全面深入的研究。撞击坑是研究月表以下物质成分的窗口，在克里普岩区选择条件合适的撞击坑开展软着陆探测有助于对克里普岩的深入研究。

The planetoid hit theory, has very quickly obtained many scientists'supports. In 1991, in Mexico's You Katan the peninsula discoveredoccurs in the remote age star the hit pit, this fact furtherconfirmed this viewpoint.

小行星撞击理论，很快获得了许多科学家的支持。1991年，在墨西哥的尤卡坦半岛发现一个发生在久远年代的陨星撞击坑，这个事实进一步证实了这种观点。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。