n.乙烷，二甲基
adj.二甲基的

The compound has a dimethyl group attached to the carbon atom.
这个化合物有一个甲基团连接到碳原子上。
They synthesized a new drug with a dimethylamine moiety.
他们合成了一个带有二甲胺官能团的新药。
The dimethyl ether is used as an industrial solvent.
二甲醚用作工业溶剂。
She added dimethyl sulfoxide to the reaction mixture.
她在反应混合物中加入了二甲基亚砜。
The compound showed increased solubility after the addition of dimethyl formate.
在加入二甲酸酯后，该化合物的溶解度增加。
The dimethyl acetal was hydrolyzed to produce the corresponding alcohol.
二甲缩醛水解生成相应的醇。
The dimethyl ester can be cleaved using a base to yield carboxylic acid.
使用碱可以裂解二甲酯产生羧酸。
The dimethylamino group in the molecule acts as a basic site.
分子中的二甲氨基团充当碱性位点。
They used dimethyl sulfate as a reagent in the sulfonation reaction.
他们在磺化反应中使用了二甲基硫酸作为试剂。
The dimethylated DNA region is less likely to be transcribed into RNA.
甲基化的DNA区域转化为RNA的可能性较小。