英语语法Theoriginalpatentoutlinedathree-stageprocess,inwhichphenolandformaldehydewereinitiallycombinedundervacuuminsidealargekettle.1、逗号后面的句子是定语从句吧?2、在这里inwhich是不是可以换成where?

Question

英语语法
The original patent outlined a three-stage process,in which phenol and formaldehyde were initially combined under vacuum inside a large kettle.
1、逗号后面的句子是定语从句吧?
2、在这里in which是不是可以换成where?

Answer 1

我觉得应该这样看,这整体就是一个句子,in which指在a three-stage process这种状态或情形下,in+which,which代替前面的a...,因为是非限制定语从句所以用which,用where语法上感觉也没有错,但好像有点牵强