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through tube; wall penetration | |||
wall pipe | |||
through-wall pipe; wall piping; wall tube; wall tubing; sleeve pipe; casing |
穿墙 管 : 28 phrases in 6 subjects |
Electric machinery | 6 |
Electronics | 4 |
Hydroelectric power stations | 1 |
Isolation | 2 |
Nuclear and fusion power | 1 |
Technology | 14 |