The result of this experiment was not noticeable for a long period.

这个实验结果长期不显著。

《新英汉大辞典》

The passage of time does not change the laws of nature; if you repeat an experiment many times--for example, making billiard balls collide at a given angle--the result is always the same.

时间的流逝不会改变这些定律；就好比你可以任意重复同一个实验--比如，可以让两个台球总是以固定的角度（和速度）相撞--（该实验的）结果一定会是一样的。

youdao

Data from the CMS experiment is showing significant excesses of particles known as leptons being created in triplets, a result that could be interpreted as evidence for a theory called supersymmetry.

大型强子对撞机上安装的“紧凑型缪子线圈”探测设备(CMS)获取的数据显示一种名为“轻子”的基本粒子在实验中显示很高的几率以三个一组被创造出来，这是一种名为“超对称”的理论所预言的结果。

youdao

What we know as a result of this experiment is that we've cleared this hurdle and we can move on to the next one.

NPR: Slate's Human Nature: S. Korean Stem Cell Advance

But the most striking result was from a third experiment.

ECONOMIST: You can��t hide��from anybody

Over a two-year experiment, we saw that there was a change in the soil structure as a result of a wetting and drying of the soil in clay-rich soils, and that can increase the amount of structure and hence storage of water.

BBC: Hybrid grass 'could reduce flooding impact'