These numbers are arbitrary and don't matter too much, except that a large "vagrant" pool will dilute the value of cell selection, while a small pool will limit the element of chance.

这些数字是任意的，不太重要，只不过，一个大的“无限制”的池将 使细胞选择的值的适合度降低，而一个小的池将限制元素的机会。

youdao

Cell phones can be quite useful in emergency situations but there is definitely a limit to how much they should be used.

紧急情况下电话确实是非常有用，但是对其使用一定也得有个限度。

youdao

Fears of nuclear terrorism have recently inspired more funding for research into new treatments, most aiming to limit cell death in damaged tissues.

过去的一段时间，出于对核恐怖袭击的担忧，人们投入了大量的资金来研究新的治疗方法，大部分的研究集中在减少受损组织里面细胞的死亡上。

youdao

While the world waits for more research to be conducted, consumers can take steps to limit cell phone radiation exposure by using the speakerphone or a wired earpiece to make calls.

CNN: Cell phone exposure increases brain cell activity

The head of a prominent cancer-research institute at the University of Pittsburgh sent a memo to all employees urging them to limit cell phone use because of a possible risk of cancer.

CNN: WHO: Cell phone use can increase possible cancer risk

Cell biologists led by Judith Campisi at the Lawrence Berkeley National Laboratory in California doubt that every cell has this dividing limit, and believe that it could be only those cells that have stopped dividing that cause ageing.

ECONOMIST: The latest from the wacky world of anti-senescence therapy