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Choose kinds of macroporous adsorption resins(AB-8,NKA-9,NKA-Ⅱ,DA-0,D-0,D00) extraction and separation the total alkaloid from Uncaria macrophylla Wall.
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选择种大孔吸附树脂(AB-8,NKA-9,NKA-Ⅱ,DA-0,D-0,D 00)分离提取大叶钩藤(Uncar iam acrophy llaW all.) |
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Chorismate mutase (CM ), prephenate dehydratase (PD ), and phenylalanine aminotransferase (PAT) are the three key enzymes in the fermentation of phenylalanine. In E. colt,the first two are encoded by a single gene pheA,while the third by tyrB gene.
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为探讨用基因工程的手段改良苯丙氨酸的发酵菌株，采用聚合酶链反应（PCR）的方法，从大肠杆菌总DNA中克隆得到了编码苯丙氨酸合成途中的两个关键酶基因－－即分枝酸变位酶（CM）／预苯酸脱水酶（PD）基因pheA与苯丙氨酸转氨酶（PAT）基因tyrB，在大肠杆菌中进行了这两个基因的单个和串联表达。 |
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Christianism is a very palmary church,Bible is the root of western civilization.
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基督教是一个杰出的教派,《圣经》是西方文化的根源。 |
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Christianity, History and International Politics; A Study of Herbert Butterfield's Thought
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基督教、历史与国际政治——赫伯特·巴特菲尔德的国际关系思想 |
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Chromium's valence state was mostly trivalent chrome, and the hexavalence chrome content of lixiviated succus was all under 0.mg/L , according to national emission standard .mg/L (GB08. -99) .
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浸出毒性试验表明，浸出液中六价铬含量低于0.mg／L，低于国家标准.mg／L(国标号：GB08． -99)。 |
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Chromosome Study on Polyphaga obscura Chopard
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黑冀地鳖染色体的研究 |
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Chromosome numbers were n=8+XO,Meiosis during spermatogenesis in cicadas was similar to those in Membracoidea,Cicadelloidea and Cercopoidea,but different from those in Fulgoroidea in prophase Ⅰ without diffuse stage.
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果表明, 种蝉的染色体数目均为n=8+XO。 蝉科的减数分裂过程类似于角蝉科、沫蝉科和叶蝉科,与蜡蝉科显著不同的是其减数分裂前期无弥散期。 |
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Chronic Nasitis Treated by Radiofrequency with Help of Nasoendoscope
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鼻窦内窥镜下射频治疗慢性鼻炎 |
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Chronic excitotoxic neurodegeneration induced by low dose of kainic acid administration intranasally in C7BL/ mice
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小剂量海人酸导致C7BL/小鼠产生慢性神经退行性病变 |
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Chronic parotitis had twiggy canula expansion(7/8 side),branch canula expansion(0/8 side),main canula expandsion(/8 side),but had not the sign of rough fringe.
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非SS患者中,慢性腮腺炎也可表现为末梢导管扩张(7/8侧)、分支导管扩张(0/8侧)、主导管扩张(/8侧),但导管无边缘毛糙征象。 |
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Chronomodulated chemotherapy of oxaliplatin, -fluorouracil and folinic acid for advanced gastric cancer
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奥沙利铂联合-氟尿嘧啶和醛氢叶酸钙时辰治疗晚期胃癌的初步临床研究 |
