“嫦娥五号”探测器起飞重量8.2吨，包括轨道器、返回器、着陆器、上升器四个部分，将在月球轨道实施无人交会对接。
Chang'e-5 , comprising an orbiter , a returner , a lander , and an ascender , with a total takeoff mass of 8.2 tonnes , is expected to accomplish unmanned rendezvous and docking in lunar orbit .
月球轨道交会