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соединительная резьба stresses
construct.	connecting thread
tech.	connection thread

соединительная резьба: 34 phrases in 15 subjects

Building structures	1
Construction	7
Dentistry	4
Drilling	2
Firefighting and fire-control systems	3
Forestry	1
Hydraulic engineering	1
Mining	1
Oil / petroleum	4
Oil and gas	2
Oil and gas technology	1
Pipelines	2
Technology	2
Transport	1
Weapons and gunsmithing	2