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- About fifteen members of the Labour Party have broken away. 大约有15名工党成员脱党。
- The calculated results show that the aza Wittig reaction is a two step reaction, having one four membered ring intermediate on its reaction surface. 计算结果表明该反应是一个二步反应,在反应途径上存在一个四元环中间体。
- Method Treatment of 8,9 anhydroerythromycin 6,9 hemiketal with iodine in the alkaline solution provided corresponding N monodemethylated 12 membered ring erythromycin derivative. 方法8,9脱水红霉素6,9半缩酮与碘在碱性溶剂中反应得到相应的N去甲基十二元环红霉素衍生物。
- The characteristic vibrational modes were assigned to the planar six membered ring (B 3O 6) 3- and tetrahedral BO 4. The vibrational spectra of CBO, CLBO, and Lithium triborate (LBO) were compared and the effect of cation was discussed. 然后比较了CBO,CLBO和LBO(LiB3O5)三种晶体的晶格振动光谱,讨论了阳离子对振动光谱的影响。
- The other fifteen members of his team advanced in line beside him, brandishing swords, spears, metal stocks, maces, and a variety of other weapons. 其余十五人或使长剑,或挺花枪,或挥钢鞭,或举铜锤,十六般兵刃纷纷使动。
- The average age of the boys in this class is fifteen. 本班男生的平均年龄是十五岁。
- eight member ring heterocyclic compound 八元杂环化合物
- nine member ring heterocyclic compound 九元杂环化合物
- four member ring heterocyclic compound 四元杂环化合物
- three member ring heterocyclic compound 三元杂环化合物
- I caught six trout in fifteen minutes. 我在十五分钟内钓到了六条鳟鱼。
- Look at the second paragraph on page fifteen. 请看第十五页的第二段。
- At fifteen years old he left school. 他十五岁时中学毕业了。
- She had the sapphire set in a gold ring. 她把那枚蓝宝石镶在金戒指上了。
- He has fifteen workers in his employ. 他雇佣的工人有十五名。
- Most students in this class are fifteen. 这个班的大多数孩子都十五岁。
- The diamond ring dazzled with brilliancy. 这只钻石戒指闪耀夺目。
- After working for fifteen hours I began to tire. 工作了十五个小时之后,我开始感到累了。
- The interview overran by fifteen minutes. 那次采访超过规定时间十五分钟。
- I caught seven trout in fifteen minutes. 我十五分钟内捉到七条鳟鱼。