"The first braking at perilune is another key moment in the long journey of Chang'e-1," he said.

"第次制动时perilune个关键时刻，在漫长的征上的嫦娥号， "他说。

Abstract.The first orbit maneuver of lunar orbit insertion (LOI) must be implemented at the first perilune of the spacecraft flight to the moon.

月球制第次制动必须在卫星飞向月球的第近月点完成。