4 neprůzvuÄnost - Izolace.cz
4 neprůzvuÄnost - Izolace.cz
4 neprůzvuÄnost - Izolace.cz
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L<br />
L2 = LW<br />
+10log<br />
L<br />
4<br />
A<br />
= +10 log + 10 log 4<br />
A<br />
1<br />
− R + 10 log S −10 log 4 + 10 log<br />
A<br />
S<br />
−L W<br />
R= 10 L1 −log<br />
R + 10 log R = SL<br />
−1 −10 Llog 2<br />
+ 10 4 log<br />
A<br />
1<br />
L W<br />
10log 4<br />
2<br />
= L1<br />
+<br />
L<br />
2<br />
=<br />
1<br />
+<br />
S<br />
A
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