_API_RP_521.PDF

1、COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2

2、000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Service

3、s,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Serv

4、ices,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling S

5、ervices,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handlin

6、g Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Hand

7、ling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information H

8、andling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Informatio

9、n Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Informa

10、tion Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Info

11、rmation Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40I

12、nformation Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:

13、40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:

14、11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000

15、08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,20

16、00 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary 23,2000 08:11:40Information Handling Services,2000COPYRIGHT 2000 American Petroleum InstituteFebuary