定语从句which的用法总结和例句详解如下：

1.which可引导限制性定语从句，用于指代物，在从句中作主语或宾语

The song which was played on the radio is my favorite. 

收音机上播放的那首歌是我的最爱。

【which指代物（the song），在从句中作主语。】

I saw the letter which came yesterday. 

我看到了昨天寄到的信。

【which指代物（the letter），在从句中作主语。】

The movie which we watched was fantastic. 

我们看的电影很好看。

【which指代物（the movie），在从句中作动词watched的宾语。】

She has the design which she is admired for by her colleague. 

她拥有令她的同事艳羡的设计。

【which指代物（the design），在从句中作介词 for的宾语。】

This carpet which you are walking on is no longer ours. 

你走着的脚下的地毯已经不是我们的了。

【which指代物（the carpet），在从句中作介词 on的宾语。】

2.which引导限制性定语从句时，在从句中作宾语时可省略

The movie (which) we watched was fantastic. (which可省)

She has the design (which) she is admired for by her colleague. (which可省)

3.which在限制性定语从句中作介词宾语时，该介词可提前至which前，此时，which不可省略（因为省了会造成句子混乱）

She has the design (which) she is admired for by her colleague.

= She has the design for which she is admired by her colleague. (which不可省)

This carpet (which) you are walking on is no longer ours. 

=This carpet on which you are walking is no longer ours. (which不可省)

4.which可引导非限制性定语从句，用于指代主句的一部分或整个主句， 在从句中作主语、宾语或表语

The ring, which I bought yesterday, is too expensive. 

这戒指太贵了，我昨天买的这戒指。

【which指代物（the ring），在从句中作宾语】

He is pathetic, which I am not. 他可悲，而我不是。

   【which指代（pathetic），在从句中作表语】

They tried to kill me, which was impossible. 

他们试图谋杀我，这是不可能的。

  【which指代（kill me）， 在从句中作主语】

I finished my homework at eight, after which I watched TV for a while. 

我八点完成了作业，之后我看了一会电视。

【which指代（I finished my homework at eight,），在从句中作介词宾语】

She accepted the idea, which could be expected. 

正如所料，她接受这个想法。

【which指代句子（She accepted the idea），在从句中作主语】

He invited me to his party, which was very kind of him. 

他邀请我参加他的派对，他这么做真好。

【which指代句子（He invited me to his party），在从句中作主语】

She means no harm, which I know. 

我知道她没有恶意。

【which指代句子（She means no harm），在从句中作宾语】

5.which引导非限制性定语从句时，不可省略；作介词宾语时，介词可提前

She means no harm, which I know. (which不可省)

The hotel, which you will stay in, is famous.

=The hotel, in which you will stay, is famous.

以上就是定语从句which的用法总结和例句，希望对你有所帮助。你可能需要深入理解：定语从句that的用法总结