- half-thickness of concrete
- толщина бетонного слоя половинного ослабления излучения
Англо-русский словарь по авиационным и ракетным базам. - М.: Военное издательство министерства обороны Союза ССР. Составители: С. М. Никитин, Ю. И. Хрущев. 1962.
half-thickness of concrete
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