The first and primary reason right now is getting enough target atoms in order to actually produce them.

现在第一个也是主要原因是获得足够的目标原子以实际生产它们。

Every so often, one of the beam atoms will knock into one of the target atoms, and the two nuclei will fuse together and you'll geta heavy element after that fusion occurs.

每隔一段时间，一个光束原子就会撞击其中一个目标原子，这两个原子核会聚变在一起，聚变发生后你会得到一种重元素。