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Cyclohexyl ( ′,′ di tert butyl ′ hydroxyphenyl) propionate was prepared by transesterifying methyl ( ′,′ di tert butyl ′ hydroxyphenyl) propionate(MDBHP) with cyclohexanol in the presence of organo tin as a catalyst.
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以 ( ′ ,′二叔丁基 ′羟基苯基 )丙酸甲酯 (简称 ,甲酯 )与环己醇为原料 ,二丁基氧化锡为催化剂合成了 ( ′ ,′二叔丁基 ′羟基苯基 )丙酸环己酯酯。 |
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Cymbidium rigidum sp.nov., a new orchid from Yunnan, China
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福兰 ,中国云南兰科一新种 |
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Cynthia Ozick is one of the outstanding American Jewish writers.
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辛西娅·奥齐克是当代杰出的美国犹太女作家。 |
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Cypher(Cordis) and Taxus(Boston Scientific) stents are the major product in the market.
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目前上市的主要产品有Cypher(雷帕霉素洗脱支架，Cordis公司)和Taxus(紫杉醇洗脱支架，Boston Scientific公司)支架。 |
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Cystadenomas of the pancreas and duodeno-preserving pancreatomy
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保留十二指肠的胰头切除术治疗胰腺囊腺癌 |
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Cytochrome P0 C9 gene polymorphism in Chinese Dulong populatoin
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中国独龙族人群中细胞色素P0 C9基因多态性的研究 |
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Cytogenetic and isoenzymic studies on Setaria millet and S.verticillata (X) and S.verticiformis (X)
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谷子与轮生狗尾草(X、X)种间的亲缘关系分析 |
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Cytogenetic studies on fanconi's anemia.
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Fanconi贫血的细胞遗传学研究 |
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Cytology Study of Maize Haploid
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玉米单倍体的细胞学研究 |
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Czapek medium containing 0.% yeast extract and 0.% Calium pantotthenic is the suitable regeneration medium for all strains and both 0.7mol·L- KCl and 0.mol·L- NaCl is the best osmotic stablizer for protoplast regeneration.
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原生质体再生培养基以加入0.%酵母膏和0. %泛酸钙的改良Czapek培养基效果好 ,用0.7mol·L- KCl和NaCl作为渗透稳定剂 ,菌株原生质体的再生率较高 |
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D 0.0±8. to 7.0±9. μm, N increasing and sloppy flowing could be seen.
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D值由 0 . 0± 8. μm增加为 7 . 0± 9. μm ,且镜下血管数目增加 ,流态呈现粒流并出现摆流 . |
