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

1.与此同时，、、酯类羰基、芳、类羰基等类含氧基团或从无到有，或官能团数增加。

2.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).

2.单糖的羰基(CO)还原得到一个醇．继而糖分子的每个碳原子都连有一个羟基(OH)。