both sentences are fine.

You can think of the sentences as follows.


1.In the chapter,the priciple of A is introduced, (which is) followed by an analysis on B.

2.This section presents a commonly-used C method,(which is) followed by a modified C with D.

Both (with "which is" or without "which is" ) are acceptable.

所有跟帖： 

• 这里的(which is)指代哪一个成份,会不会引起歧义?还 -私房小菜爱好者!!!- ♀ (104 bytes) () 12/05/2004 postreply 14:57:49

• Sure, why not? It is used -2ndglance- ♂ (15 bytes) () 12/05/2004 postreply 15:14:27

• 回复：这里的(which is)指代哪一个成份,会不会引起歧义?还 -2ndglance- ♂ (171 bytes) () 12/05/2004 postreply 15:24:46

• Thanks a lot! You are the best -向你敬礼!!!!- ♀ (0 bytes) () 12/05/2004 postreply 15:28:32

• Your grammar -sucks!!!- ♀ (4 bytes) () 12/05/2004 postreply 15:09:36

• What the heck are you talking -2ndglance- ♂ (7 bytes) () 12/05/2004 postreply 15:16:01

• What a -loser!- ♀ (130 bytes) () 12/05/2004 postreply 15:32:38