It was an attempt to cool the highly radioactive fuel rods from overheating.

力图冷却放射性燃料棒以防其温度过高。

youdao

So, they generally run on highly radioactive power sources, which are dangerous even during launch.

所以，飞船的飞行通常依赖于高强度的辐射能源，这种能源甚至在发射时也是有危险的。

youdao

So, they generally run on highly radioactive power sources, which are dangerous even during launch.

所以，飞船的飞行通常依赖于高强度的辐射能源，这种能源甚至在发射时也是有危险的。

youdao