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koeficient zvukové pohltivosti (1) |
Kundtova trubice (1) |
linen (1) |
manšestr (1) |
noise reduction coefficient Kundt's tube (1) |
pletenina (1) |
plátno (1) |
sound absorption coefficient (1) |
vlna (1) |
wool (1) |
Now showing items 11-20 of 1