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Caco3 cac2. C2h2+o2. C2h2+h2.
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D u c
C version
Char c
C удельная теплота
2c c
D c l m
K y c
5 5 s 5 c
Функциональная c
C o n s t
Caco3 cac2. C2h2+o2. C2h2+h2. 