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непровар n stresses
auto.	lack of penetration (при сварке)
avia., WWII.	spill (порок металла при прокате)
chem.	lack of fusion (шва); lack of interpenetration; poor fusion (шва)
commun.	lack of penetration; lack of fusion
construct.	cold shut (при сварке); lack of penetration (дефект сварки)
energ.ind.	nonpenetration (при сварке)
forestr.	raw cook
glass	stones; batch stone
mater.sc.	incomplete fusion
mech.eng., obs.	spilly place
met.	bad welding (AleGon)
O&G. tech.	cold weld
oil	lack of penetration (шва по глубине); incomplete penetration (сварка); faulty fusion (шва)
pipes.	incomplete penetration (напр., при производстве сварных труб); poor penetration (неполное проплавление сварного шва, напр., при производстве сварных труб); lack of penetration (неполное проплавление сварного шва, напр., в сварных трубах)
pulp.n.paper	undercooked pulp
qual.cont.	nonpenetration
silic.	spilled batch
tech.	batch stone (дефект стекла); faulty fusion; inadequate penetration; incomplete penetration; poor penetration; cold shut; lack of fusion (дефект сварки); spill (дефект сварочного шва)
weld.	spill; incomplete penetration (Наличие пустот Leonid Dzhepko); faulty penetration (Наличие пустот Leonid Dzhepko); poor penetration (Наличие пустот Leonid Dzhepko); lack of weld penetration (MichaelBurov); lack of welding penetration (MichaelBurov); poor weld penetration (MichaelBurov); poor welding penetration (MichaelBurov); poor weld fusion (MichaelBurov); poor welding fusion (MichaelBurov); faulty fusion weld (MichaelBurov); faulty fusion in welding (MichaelBurov); cold lapping (сварного шва Johnny Bravo); unwelded spot (дефект сварного шва Yeldar Azanbayev); lack of penetration (Наличие пустот Leonid Dzhepko); incomplete root penetration (Johnny Bravo); poor fusion
непровары n
met., obs.	spilly places

непровар : 53 phrases in 15 subjects

Automated equipment	1
Bridge construction	1
Chemistry	1
Construction	6
Foundry	2
General	2
Metallurgy	2
Nautical	1
Non-destructive testing	7
Oil and gas technology	1
Oilfields	2
Pipelines	1
Pulp and paper industry	2
Technology	3
Welding	21