furan造句
Such is the case in pyrrole, thiophene, and
furan.
吡咯, 噻酚和呋喃的情况就是这样.
It'shows that the key step is the synthesis of 4 - methyl - dihydro -
furan - 2 , 3 - dione.
研究结果表明关键步骤为原料 4- 甲基 -2, 3- 呋喃二酮的合成.
A novel
furan resin was synthesized by polycondensation between furfuralcohol and furfural.
用糠醇和糠醛缩聚制备了新型呋喃树脂.