Increasing gravity is known to speed up the multiplication of cells.

为人所知的是，不断增加的重力会加速细胞数量的递增。

《柯林斯英汉双解大词典》

The natural sedimentation of cells due to gravity is balanced by the bioreactor's rotation, resulting in a gentle falling of cells within the media in the chamber.

由重力作用导致的细胞的自然沉降被反应器的旋转所平衡掉，因而细胞能够在反应器腔内的培养基中温和地下降。

youdao

They were sent up with early space flights to see how human cells coped with zero gravity and exposed to radiation to test the effects of nuclear weapons.

这些细胞随着早期的航天飞行被送上太空，用以观察人类细胞在失重的状态下如何存活，并将它们暴露在辐射中用以测试核武器的影响。

youdao

HeLa cells have gone to the moon to test the effect of zero gravity.

VOA: special.2010.07.21

Here, without the gravity effect, we can grow cells very purely and understand the mechanisms by which they are replicating.

WHITEHOUSE: President Obama's call to the International Space Station