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焊接管 hànjiēguǎnstresses
tech. сварная труба; сваренная труба; сварочная труба
焊接管
: 54 phrases in 11 subjects
Communications1
Construction2
Drilling1
Electronics3
General24
Microelectronics1
Oil / petroleum1
Oil and gas2
Oil processing plants2
Technology16
Welding1