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The new β D xylopyranosides of substituted fluorouracil were synthesized by phase transfer catalysis or Koenigs Knorrs reaction.
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以相转移催化法和Koenigs-Knorrs反应,使α-溴代乙酰基木糖与-取代--氟脲嘧啶或其银盐作用,合成了个未见文献报道的糖苷类化合物。 |
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The pairs of the ribs (costae) are wide and rough.
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肋骨对,宽,粗糙。 |
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The 0 Jilin goslings and the 0 crossbred goslings were tested after days of fatting with grazing and feeding .
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随机选择刚出生的本地鹅雏和杂交鹅雏各 0只,采取放牧加补饲的方法育肥至 日龄。 |
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The I dosage for each gramme of thyroid tissue was decided accordind to the patients' age:patients between 7-9 years were administered .-.9 MBq/g, 0-0 years .9- .7 MBq/g and over 0 years .7-. MBq/g.
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例根据年龄分组,选择每克甲状腺组织用 I的量:年龄7~9岁.~.9MBq/g, 0~0岁.9~ .7MBq/g,0岁以上 .7~.MBq/g。 |
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The 80 degree back scattering character of biologic tissue and other turbid mediae can reflect the media′s information inside.
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利用生物组织等混浊介质偏振入射光的 80°后向散射特性 ,可以反映该介质的内部结构信息。 |
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The 9 7 elixir sulfanilamide (containing diethylene glycol)incident and its repeating
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9 7年磺胺酏剂(含二甘醇)事件及其重演 |
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The 997 new criminal law determines the nature of forced sodomy as coercive obscenity, which does not tally with reality, and it bears remarkable legal loopholes .
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997年新刑法将强行鸡奸定性为强制猥亵,这并不符合实际,同时它还存在着一些比较明显的法律漏洞。 |
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The H and C NMR spectra of 9 firstly synthesized lariat Ethers containing pyridine were recorded.
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本文研究了九种新合成含吡啶氮杂缰绳醚~H、~ C NMR谱。 |
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The to decibel(dB(A)was reduced from the bus outer acceleration's noise,the result show that the design of cooling system combined with cooling and low noise is feasible.
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采取措施后,客车的车外加速噪声下降了~ dB(A),表明,兼顾冷却、降噪要求的该后置客车冷却系统设计可行。 |
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The -D numerical simulation was employed to study the dynamic stall of the NREL S809 airfoil using the CFD software. The sinuous periodic flow field around the airfoil was presented when the angle of attack changing from 9°— °.
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本文应用CFD软件Fluent 0对NRELS809翼型的二维动态流场进行了数值模拟,得到了翼型攻角在9°~ °范围内按正弦周期变化时的绕流流场。 |
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The -factor model of ISCYC and -factor model provided by Kaufman were fitted to the data and compared.
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方法 :采用验证性因素分析方法 ,分别对ISCYC的二因素模型及Kaufman提出的三因素模型的数据拟合情况进行分析与比较。 |