The maria, or ‘seas’, were named by early astronomers who mistook them for actual oceans on the Moon, but of course today we know that no such large bodies of liquid water exist on the lunar surface. The lunar maria are impact basins created by collisions with cosmic debris that filled...
例句:NASA plans to launch a satellite to study cosmic rays.美国国家航空航天局计划发射一颗卫星来研究宇宙射线。 postponevt.使…延期 例句:He decided to postpone the expedition until the following day.他决定将探险活动推迟到第二天。 curriculumn.课程 例句:Teachers incorporated business skills into the ...
The maria, or ‘seas’, were named by early astronomers who mistook them for actual oceans on the Moon, but of course today we know that no such large bodies of liquid water exist on the lunar surface. The lunar maria are impact basins created by collisions with cosmic debris that filled...