青云翻译

Absorption peak at 2853 em are hydrocarbon ch antisymmetric and symmetric stretching vibration absorption peak.

2853 em absorption peak at be CH hydrocarbon respectively anti-symmetric and stretching vibration absorption peak.

2853 em place absorption peak respectively is the CH carbon hydrogen antisymmetry and the symmetrical expansion and contraction vibration absorption peak.

In 2853 the em CH absorption peaks are respectively the hydrocarbon against alleged and symmetrical retractable vibration absorbing feng.

2853 em absorption peak at be CH hydrocarbon respectively anti-symmetric and stretching vibration absorption peak.