If you repeatedly go through this cycle of denaturing, synthesizing, denaturing, synthesizing you'll get many, many copies of DNA.

如果你不断重复这个变性-复制,变性-复制的循环过程,你就会得到很多很多的DNA复制产物

耶鲁公开课 - 生物医学工程探索课程节选

Now you start a process, a cyclic process, where the first step in the process is denaturing the DNA.

然后你就可以开始一个循环步骤,第一步是使DNA变性

耶鲁公开课 - 生物医学工程探索课程节选