mass mating

例句：

1. 1. The research on mass mating has been a hot topic in recent years.
   近年来，大规模交配的研究成为了一个热门话题。
2. 2.The scientists are conducting experiments to study the effects of mass mating on plant growth.
   科学家们正在进行实验，以研究大规模交配对植物生长的影响。
3. 3.The results of the mass mating experiment showed that the offspring were more diverse than those from traditional crossbreeding.
   大规模交配实验的结果显示，后代比传统的杂交后代更加多样化。