| |||
wrapper tube | |||
outer tubing | |||
external casing; protecting casing | |||
jacket | |||
outer shell; outer sleeve; outer tube | |||
| |||
shroud can |
外套管 : 45 phrases in 9 subjects |
Aviation | 1 |
Drilling | 9 |
Electronics | 3 |
Engineering geology | 2 |
Isolation | 3 |
Mechanics | 1 |
Oil / petroleum | 13 |
Technology | 10 |
Textile industry | 3 |