Now, I have hundreds of liters of unused hydrazine at the MDV.

现在，飞行器中有好几百升没用过的联氨。

From there, we took the MDV (Mars descent vehicle) to the surface.

进入火星轨道之后，我们乘坐MDV（火星降落载具）抵达火星地表。

The MDV is basically a big can with some light thrusters and parachutes attached.

MDV，基本上就是个安装了若干轻型推进器和降落伞的大罐子。

Not that the MDV would be much use to me.

本来也没想过MDV能派什么大用场。

Once the chute was exposed, it dragged the MDV all over the place, smashing it against every rock in the area.

降落伞一旦暴露在外，就会拽着MDV颠三倒四，跟地上的每一块岩石亲密接触。