dark halo crater 暗色晕圈状火山口
An ash cone rises from the center of the crater, casting a dark triangular shadow.
火山口中间是火山灰锥，投下了三角形的暗影。
The Moon, at least at the bottom of a deep, dark cold crater near its South Pole, seems to be wetter than the Sahara, scientists reported Thursday.
据周四报道，科学家发现位于月球南极的冷陨石坑底部阴影地带，湿度似乎比撒哈拉沙漠大。
Forming a paisley pattern, the dark volcanic rocks north of SP Crater result from lava flows. (This image has been rotated and north is at right.)
火山熔岩从火山口的北边流淌下来，形成漩涡状的暗黑色岩体(图片已旋转，右边是北方，)。
应用推荐