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непроницаемый adj. stresses
gen.	impenetrabile; impermeabile; imperscrutabile (Assiolo); sornione (Avenarius); incomprensibile; riservato; abbottonato
chem.	a tenuta
construct.	stagno
pack.	a tenuta stagna (oksanamazu); ermetico (oksanamazu)
phys.	incompenetrabile
radio	opaco
свето непроницаемый adj.
chem.	opaco

непроницаемый: 19 phrases in 6 subjects

Chemistry	2
Construction	4
General	2
Mining	2
Packaging	5
Technology	4