Milton is narrating or representing the process by which they are silenced. They're rendered speechless or dumb, and the poem effects this process in order to give someone else an opportunity to speak.

弥尔顿在叙述或描绘这个,他们缄默的过程，他们都变得沉默或哑巴了，同时诗歌也影响了这个过程,为了使另外某个人有机会开口说话。

耶鲁公开课 - 弥尔顿课程节选

It's the way, for example, that foreign molecules or antigens get presented to cells of your immune system in order to start the process of making an immune response, so sometimes a cell/cell interaction.

通过这种方式,外源分子,或者说抗原,进入到免疫系统的细胞中后,就会开启免疫反应过程,有时候就是细胞之间的相互作用

耶鲁公开课 - 生物医学工程探索课程节选