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C4h6+02. C2h4 c2h5oh. C2h6 c2h4. С2h2+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
C4h6+02. C2h4 c2h5oh. C2h6 c2h4. С2h2+h2. 