英语语法分析

The mission by the three-tonne orbiter, also known as the Selenological and Engineering Explorer, or SELENE, was the most extensive mission there since the US Apollo programme, JAXA said.

日本宇航探测总署称，由重三吨的轨道器进行的探测任务，又叫作月球学及工程探测器或SELENE是自美国阿波罗项目以来最为广泛的月球探测任务。