| 释义 |
〔earthrise〕The rising of the earth above the horizon as seen from the moon.地出：从月球上看到的地球从地平线上升起的现象〔mascon〕A mare on the moon having rock of greater density than that of the surrounding area, thus exerting a slightly higher gravitational force.质量密集：月球上的阴暗部，其内部岩石比周围地区的岩石的密度大，因此产生略大些的引力〔moonquake〕A quake or series of vibrations on the moon similar to an earthquake but usually of very low magnitude.月震：发生于月球上的类似于地震的震动或一系列的振动，剧烈程度通常不高 |