1.The theory for exploring the moon time after time through double lunar swingby is analyzed at first.

1.分析了双近旁转向实现多次测原理。

2.After completing lunar swingby maneuvers, the A spacecraft is intended to orbit the Sun "Ahead" of planet Earth, and the B spacecraft "Behind".

2.在完测器变轨后，A飞船将在地前方绕行太阳，而B飞船则在"后方"绕行。