那种联系是被证实了的医学事实。

That link is an established medical fact.

《柯林斯英汉双解大词典》

铅是一种被证实了的神经毒素，它可以导致学习，语言和行为能力障碍。

Lead is a proven neurotoxin that can cause learning, language and behavioral problems.

youdao

这个人偷了些苹果，但是没有确实证据，被证实了的，只是他曾在土伦坐过牢。

This man had stolen apples, but that did not appear to be entirely proved; what had been proved was, that he had already been in the galleys at Toulon.

youdao

You start with liquid metal one, liquid metal two, you have the atom ratios proper, they mix, electron transfer occurs and poof, it is clear and colorless. Sorcery.

从液态金属一，液态金属二开始，你有合适的原子比例，混合它们，电子转移发生且被证实了，产物是透明无色的，有点辣味。

麻省理工公开课 - 固态化学导论课程节选