cislunar

1.the darkness of cislunar space.

月空间的一片黑暗。

2.The LM was the lander portion of the Apollo spacecraft built for the Apollo program by Grumman to achieve the transit from cislunar orbit to the surface and back.

登月舱是由格鲁曼制造的阿波罗宇宙飞船登陆舱的一部分，用月间轨道的表面飞行到背面。