吡咯, 噻酚和呋喃的情况就是这样.Such is the case in pyrrole, thiophene, and furan.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.It'shows that the key step is the synthesis of 4 - methyl - dihydro - furan - 2 , 3 - dione.用糠醇和糠醛缩聚制备了新型呋喃树脂.A n...
These aminated chitosanmicrobeads may be used as novel materials for bio - separation and carriers for enzyme immobilization.可用作新型固定化酶载体及生化分离材料.Theresults showed that , under proper conditions , the basic capacity of nov...
Butter, margarine, and oily fish are all good sources of vitamin D.黄油、人造黄油和多脂鱼都含有丰富的维生素D。A pall of oily black smoke drifted over the cliff-top.一团油腻的黑色烟雾飘到悬崖顶上。He was wiping his hands on an oily rag.他正在用一块满是油污的破布擦手。...
她好不容易才掩饰住宽慰的心情。It took some effort to conceal her relief.她又一次注意到彼得·麦克德莫特的平静而使人宽慰的声音.She was aware of Peter McDermott's calm, restoring voice once more.使我们多少感到宽慰的是, 我祖母是老死的.Somewhat to our relief, my grandmother died...
“这些时装太漂亮了。我没想到米兰是如此的精彩，”她赞不绝口。"Such lovely clothes. I'd no idea Milan was so wonderful," she raved.芭蕾舞演员的姿态是如此的优美.The ballet dancer is so graceful.如此的悦耳之声令人难以抵抗.Such euphony is hard to resist....