At the same time, some other oxycompound groups, such as carbonyl group, aldehyde group and ketone group, appear or increase with temperature rising.

与此同时，醛、酮、酯类羰、芳香酮、醛类羰等类含氧有，官能数量不断增加。

Sugar alcohol (alditol) An alcohol derived from a monosaccharide by reduction of its carbonyl group (CO) so that each carbon atom of the sugar has an alcohol group (OH).

单糖的羰(CO)还原得一个醇．继而糖分子的每个碳原子都连有一个羟(OH)。