套管
- na.casing; bushing; sleeve; casing pipe
- 网络cannula; thimble; Tube

套管
1.drivepipe; annular tubes; branch pipe; casing pipe; sleeve; sleeving; canula; cannula; casing; cothead; spigot; nozzle; connection; bushing; casing (drill hole)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29