这主要是个反复实验的问题。

It was largely a matter of trial and error.

《牛津词典》

利用率和堆大小之间的关系跟应用程序有很大关系，达到一个大致平衡需要使用应用程序和 VM 参数反复实验。

The relationship between utilization and heap size is highly application dependent, and striking an appropriate balance requires iterative experimentation with the application and VM parameters.

youdao

反复实验是知识的源泉。

Trial and error is the source of knowledge.

youdao

So this is an experiment of using an online distance product to enrich what was from a content standpoint that our students recapped.

因此，这个实验,用网上远程产品充实了,同学们反复阐述的,内容观点。

麻省理工公开课 - 媒体、教育、市场课程节选

So I think it is important to keep this in mind and I'm gonna be coming back to this a number of times as we talk about the experiments we were doing at the Soen School of management.

你们要牢记这一点,因为之后,我们会谈到这个问题,做的实验时,我会反复提到这个内容。

麻省理工公开课 - 媒体、教育、市场课程节选

What they show was rats who went through the maze and went through the maze again and again, learned far less than rats who took time aside, chilled out a little bit after a maze, had more margarita.

他们的实验表明,接连不断反复进入迷宫的老鼠，比进行一次迷宫后，稍事放松，来点小酒的老鼠，学到的少得多。

哈佛公开课 - 幸福课课程节选