陨石坑

陨石坑在Flagstaff东40公里，对于那些没有太多想象力的人来说是一个世外桃源。

Meteor Crater , 40 miles east of Flagstaff , is an out-of-this-world site for those with a thimbleful of imagination .

多数人来这里看亚利桑那州的流星陨石坑，他们看到一个在地上的大洞。

Most people come here to meteor crater in Arizona to see a big hole in the ground .

基于Census变换和Boosting方法的陨石坑区域检测

Crater Region Detection Based on Census Transform and Boosting

数星期前，探测器到达了一个巨大陨石坑的边缘，科学家们把这个陨石坑命名为“奋进”（Endeavour）。

The rover arrived several weeks ago on the rim of a large crater that the scientists named Endeavour .

当拍摄水星中央巨大的卡洛斯盆地时，MESSENGER发现了一个陨石坑，如上图所示，可以看到从它的中心放射出一组奇怪的射线。

When imaging the center of Mercury 's extremely large Caloris Basin , MESSENGER found a crater , pictured above , with a set of unusual rays emanating out from its center .

尽管已在NASA“好奇号”探测车正在探测的盖尔陨石坑（GaleCrater）的那座山上发现了两处疑似条纹，前述禁令可能依然有效。那里距离“好奇号”的原定路线一两英里。

That prohibition may continue even though two candidate streaks have been identified on the mountain in Gale Crater that NASA 's Curiosity rover is now exploring , a mile or two from its planned path .

核动力发射的“好奇号”将探索其登陆地点“盖尔陨石坑”（galecrater）的化学和地质情况，为科学家关于火星是否曾有原始生命的研究提供证据。

The nuclear-powered curiosity will then explore the chemistry and geology of the gale crater , the landing site , providing evidence for scientists to assess whether or not primitive life has ever lived on Mars .

针对算法对成像条件适应性差的问题，引入多尺度自适应高斯滤波降噪算法、以及基于图像梯度幅值直方图的自适应Canny边缘检测算法，对已有陨石坑检测算法进行了改进，得到自适应陨石坑检测算法。

For the problem of poor adaptability to imaging conditions , the algorithm is improved by introducing Multi-scale Adaptive Gaussian Filter and Adaptive Canny Operator based on image gradient magnitude histogram , which results in Adaptive Crater Detection Algorithm .

去年秋季，LCROSS太空船撞击到一个永远处于阴影中的陨石坑中，发现了表层中拥有水冰的迹象，但是那些水冰可能是由于古代的彗星撞击而积存下来的。

The LCROSS spacecraft , which slammed into a perpetually shaded lunar crater last fall , turned up evidence of water ice on the surface , but that ice was presumably deposited by an ancient comet impact .

在新闻发布会结束后接受采访时，来自NASA的格林表示，如果盖尔陨石坑的条纹结果是季节性坡纹，NASA会考虑多年接受紫外线照射的“好奇号”，可能会给潜在的火星居住环境造成多大程度的污染威胁。

In an interview after the news conference , Dr. Green of NASA said that if the streaks in Gale Crater turned out to be recurring slope linae , the space agency would consider how great a contamination threat Curiosity , irradiated by ultraviolet light for several years , might pose to a potential Martian habitat .

对陨石坑障碍，给出一种基于GVF-Snake动态模型的可靠闭合轮廓检测方法；对岩石障碍，给出一种基于多分辨率分析的快速岩石检测方法。

A novel contour detection method based on GVF-Snake dynamic model is given for the detection of crater , and a rapid detection methods based on multi-resolution analysis is presented for the detection of rock .

我们在新墨西哥希克苏鲁伯发现了巨大的陨石坑。

We discovered the meteor impact crater near Chicxulub New Mexico .

S：但是我们没有在地球上这些陨石坑。

S : But we don 't have these craters on earth .

整个金星上的陨石坑情况真的很让人迷惑。

The whole impact craters situation on Venus is really very puzzling .

他发现在印度有一个比希克苏伯陨石坑大&大很多的陨石坑。

Dr Chatterjee has found a bigger crater much bigger in India .

大家请往后站那是个陨石坑吗

Everyone step back please . Is that a crater ?

一个空前绝后的陨石坑，好像另一次泰坦尼克号的碰撞一样。

A crater epic proportions , the result of yet another Taitanic collision .

福波斯卫星表面最大的陨石坑称为“斯蒂克尼”。

The biggest crater on Phobos is called Stickney .

对陨石坑尺寸和数目之间的关系进行了研究。

The pits dimension and number and its relationship between them was studied .

说明：为什么水星上的这个陨石坑看起来像只蜘蛛？

Explanation : Why does this crater on Mercury look like a spider ?

例如，所有陨石坑的位置分布？

For example , where are all the craters ?

现在，我们还可以看到仍然陨石坑和弹孔。

Now , we can also see the remained craters and bullet holes .

试验结果表明该方法有效地恢复了陨石坑的三维信息；

The method is verified by the experiment result in the reconstruction of craters .

火星表面陨石坑的碎形特征

Fragmentation of meteorite pits on Mars ' surface

那是由陨石坑里发现的金属锻造的。

The triangle was forged from metal found in the crater of a meteor .

这些陨石坑在夏天浸出水分。

These craters are weeping during the summer .

白沙绿茶，中国唯一在陨石坑上种植的绿茶！

Baisha green tea , the only green tea grown in the crater on !

我国首次发现陨石坑

The First Discovery of Impact Crater in China

在那些远离希克苏鲁伯陨石坑的地点，有证据显示只发生过一次撞击事件。

The sites that are distant from Chicxulub show evidence of only one impact .

约翰斯特福尔发现，被研究的陨石坑1953年以前就已存在。

John Westfall discovered that the crater in the study had existed before 1953 .