These have been called " mighty mice" .

这些都被称作“太空飞鼠”。

Without it, these mighty mice have about twice the muscle mass of their non mighty counterparts.

如果没有它，这些" 力量老鼠" 的肌肉质量大约是它们正常同类的两倍。

The mighty mice are a strain of mice that we generated through genetic engineering and these mice are completely normal.

" 力量老鼠" 是我们通过基因工程生成老鼠的一个品系，这些是完全正常的小鼠。

So scientists have been experimenting with " mighty mice" to see if a drug could be produced one day that could help astronauts keep their muscle in a microgravity environment.

所以科学家一直用“太空飞鼠”做实验来探究是否某天能有一种药可以帮助宇航员使他们的肌肉保持在微重力环境下。