venoso管 （224）

19 secs

6 mins 30 secs

6 mins 15 secs

19 secs

1 min 22 secs

17 secs

4 mins 21 secs

2 mins 9 secs

31 secs

10 secs

1 min 46 secs

18 mins 18 secs

19 secs

1 min 11 secs

11 mins 27 secs

31 secs

8 secs

1 min 14 secs

16 mins 4 secs

59 secs

33 secs

28 secs

17 secs

11 mins 25 secs

32 secs

5 mins 6 secs

18 secs