感觉下面的资料总结得不错（稍作改动），可以参考一下：

关系限定词which之后名词的语义特征

关系限定词which之后一般是个外延比先行项更为广泛的的抽象名词，比方说fact，case，event，situation，time，place，means，advice，failure，claim，statement等。

具体来讲：

1. 当先行项是主句中的名词成分时，关系限定词which之后的名词通常是前面名词成分的上位词；

2. 当先行项是整个主句所表示的一种情况时，

2.1 关系限定词which之后的名词是对前面情况的一种总结概括

2.2 关系限定词which之后的名词是对主句与从句之间潜在逻辑语义关系的一种明确。

例句：

1. Tom spent four years in college，during which time he learned French.

time是years的上位词

2.1 I called him by the wrong name，for which mistake I apologized.

先行项所表示的情况是对关系限定词which之后的名词的某种具体说明，即先行项回答了后面这一抽象名词所指内容“是什么”的问题。

2.2 It is suggested that a transformer be fixed to the fluorescent light，by which means electrical force can be changed.

关系限定词which之后的名词直接指明了主从句之间隐藏的内在逻辑关系，这里表示方式。

which 引导定语从句时，它在从句中主要用作主语或宾语，但有时也可用作定语，在意义上大致相当于 this 或 that。给你几个例句，请注意体会：

We told him to consult the doctor, which advice he took. 我们叫他去看医生，他听取了我们的劝告。

He is studying economics, which knowledge is very important today. 他学经济学，这种知识现今很重要。

He lost his temper, at which point I decided to go home. 他发脾气了，这时我就决定回家了。

We arrived at noon, by which time the demonstration was over. 我们是中午到的，这时游行业已结束。

Tom spent four years in college, during which time he learned French. 汤姆上了四年大学，在此期间他学了法语。

I called him by the wrong name for which mistake I apologize. 我叫错了他的名字，为了这个错误我愿道歉。

He may possibly decide not to come, in which case there’s no problem. 他可能会决定不来，这样就没问题了。

注意，它与用作定语的关系代词 whose 用法不同——whose 引导定语从句时，它在意义上大致相当于 one's。如：

Wolves are highly social animals whose success depends upon cooperation. 狼是高度群体化的动物，它们的成功依赖于合作。