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穿墙管
el.
through tube
;
wall penetration
eng.geol.
wall pipe
tech.
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
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