at+one's+command
131command module — {n.}, {Space English} 1. One of the three main sections of the basic Apollo spacecraft. It weighs six tons and is cone shaped. It contains crew compartments and from it the astronauts can operate the lunar module (LM), the docking systems, etc. 2 …
132command module — {n.}, {Space English} 1. One of the three main sections of the basic Apollo spacecraft. It weighs six tons and is cone shaped. It contains crew compartments and from it the astronauts can operate the lunar module (LM), the docking systems, etc. 2 …
