What have their researches shown?

他们的研究证明了什么？

They do some researches on the postzygotic isolation.

他们做了一些关于合子后分离的研究。

Firstly, this thesis researches car bus technology and current situation of motormeter.

本文首先研究了汽车总线技术、汽车仪表的发展现状。

This paper researches the fermentation condition of gellan gum production utilizing Sphingomonas paucimobilis.

这篇研究利用少动鞘脂单胞菌发酵生产结冷胶的发酵条件。

There are few researches on the classification and identification of Oenococcus oeni in China for the present.

目前，中国在酒酒球菌分类鉴定方面的研究还很少。