We also do it through biology, working closely with experimentalists.

我们还通过生物学与实验人员密切合作来做到这一点。

So it is with hybrids, for their offspring in successive generations are eminently liable to vary, as every experimentalist has observed.

杂交种也是如此， 因为正如每个实验者所观察到的， 它们连续几代的后代非常容易发生变异。

And the heavy lifting was done by experimentalists who built the particle accelerators, the telescopes, and the devices that allowed us to probe into the center of stars and galaxies.

而繁重的工作是由实验者完成的，他们建造了粒子加速器、望远镜，这这些设备允许我们探索恒星和星系的中心。

The sterility is of all degrees, and is often so slight that the most careful experimentalists have arrived at diametrically opposite conclusions in ranking forms by this test.

不育程度各不相同， 而且通常非常轻微， 以致于最细心的实验者通过该测试得出了完全相反的排序形式结论。