was preserved free of any obvious connection with his science

Question

سلام. ترجمه قسمت قرمز رنگ رو میخوام لطفا. معنیش رو میفهمم ولی  نمیتونم یه جمله فارسی خوب براش بنویسم.
 

The pressures he experienced had the effect of splitting him in two, prompting him to ensure that any work he conducted for the military was purely theoretical – of no practical use to anyone – while his activism was preserved free of any obvious connection with his science.

Answer 1

در حالی که کنشگری او به دور از هر گونه ارتباط واضح با علمش حفظ می شد.

در حالی که کنشگری او ارتباط واضحی با علمش نداشت. (فهم این جمله راحت تره)