脱氧

The results of the study are important to improve the current efficiency in the electro-deoxidation process of silicon dioxide.

本研究工作对提高SiO2电脱氧过程的电流效率有重要意义。

Their structures were identified by chemical and spectral analysis. RESULTS Five compounds were isolated and identified as stigmasterol 3-O-β-D-glucopyranoside, 20β-hydroxy-ecdysone,β-L-thymidine, pennogenin 3-O-α-L-rhamnopyranosyl-(1→2)-β-D-glucopyranoside and pennogenin 3-O-α-L-rhamnopyranosyl-(1→4)-α-L-rhamnopyranosyl-(1→4)-α-L-rhamnopyranosyl-(1→4)-[α-L-rhamnopyranosyl-(1→2)-]-β-D-glucopyranoiside.

结果 分离并鉴定了5个化合物，分别是Δ5，22-豆甾醇3-O-β-D-葡萄吡喃糖苷，20β-羟基蜕皮激素，β-L-脱氧胸腺嘧啶苷，偏诺皂苷元3-O-α-L-鼠李吡喃糖基－(1→2)-β-D-葡萄吡喃糖苷和偏诺皂苷元3-O-α-L-鼠李吡喃糖基－(1→4)-α-L-鼠李吡喃糖基－(1→4)-［α-L-鼠李吡喃糖基－(1→2)-］-β-D-葡萄吡喃糖苷。

Fractal is a subdiscipline of nonlinear area, researches on fractal characteristics of the deoxyribonucleic acid sequence may reveal some secret hidden in the DNA sequence during the process of biological evolution. Chaos Game Representation was proposed as a scale-independent representation for genomic sequences by Jeffrey in 1990. This technique, based on iteration function system, represents the word distribution statistics in DNA sequence as the fractal graphic. Therefore, we can get the distribution of sequence through analysis of fractal theory.

分形是非线性领域的一门分支学科，关于脱氧核糖核酸序列分形特征的研究，可以揭示生物在进化过程中隐藏在DNA序列中的某些秘密。1990年Jeffrey提出了基因组序列的与尺度无关的混沌游戏表示法，这是基于迭代函数系统的一种方法，它将DNA序列中一定长度字的分布规律表现为图形的分形特征，进而通过分形分析就可获取序列的分布规律，从而也成为DNA序列分析的一种统计方法。

Any of various simple submicroscopic parasite s of plants,animals,and bacteria that often cause disease and that consist essentially of a core of RNA or DNA surrounded by a protein coat.

病毒各种动物、植物和细菌的简单亚微观寄生虫之一，常引起疾病，主要由核糖核酸或脱氧核糖酸的一个核组成，周围有蛋白质包围。

Any of various simple submicroscopic parasites of plants, animals, and bacteria that often cause disease and that consist essentially of a core of RNA or DNA surrounded by a protein coat.

病毒是各种动物、植物和细菌的简单亚微观寄生虫之一，常引起疾病，主要由核糖核酸或脱氧核糖酸的一个核组成，周围有蛋白质包围。

The main study of this dissertation is shown as follows.1.Two new amphiphilic steroid derivatives(N-cholesteryl succinyl glucosamine, CSG and N-deoxycholyl glucosamine,DCG) were designed and synthesized.Their chemical structures have been confirmed by means of Fourier Transform Infrared Spectrometry,Nuclear Magnetic Resonance Spectrometry and Mass Spectrometry.

设计、合成了新型的两亲性甾族衍生物—N-胆固醇琥珀酰基氨基葡萄糖(N-cholesteryl succinyl glucosamine，CSG)和N-脱氧胆酰基氨基葡萄糖(N-deoxycholyl glucosamine，DCG)，并采用傅立叶红外波谱仪(Fourier TransformInfrared Spectrometry，FT-IR)、核磁共振波谱仪(Nuclear Magnetic ResonanceSpectrometry，NMR)和质谱等分析仪器对原料、中间产物和最终产物的化学结构进行表征。

In the present paper, the induction characteristic of lymphoblastoid, in-terferon in vitro is described. Results indicate that Namalwa cell line possesses a higher interferon-inducing ability than Raji and Yu-Nu cell lines. NDV B1 strain, F strain and Sendai virus can induce more interferon than BB1 virus and poly 1 : C. Priming of pretreating cells with homologous interferon or superinduction did not effect interferon production. The optimal cell concentration for interferon induction is about 106 cells/ml...

本文研究了类淋巴母细胞干扰素的诱导特性：Namalwa细胞系的干扰素诱生能力大于Raji和余奴系，而诱生剂中以NDV和仙台病毒诱生干扰素的能力较大，但"起动"和超诱导均无作用；诱生干扰素适宜的细胞浓度为10~6/毫升；增殖期的Namalwa细胞诱生能力较大；黄芪和5'-溴脱氧尿嘧啶核苷对Namalwa细胞干扰素的诱生系统有明显刺激作用，在最适条件下粗制干扰素平均滴度可达40，000单位/毫升。

In the present paper, the induction characteristic of lymphoblastoid, in-terferon in vitro is described. Results indicate that Namalwa cell line possesses a higher interferon-inducing ability than Raji and Yu-Nu cell lines. NDV B1 strain, F strain and Sendai virus can induce more interferon than BB1 virus and poly 1 : C. Priming of pretreating cells with homologous interferon or superinduction did not effect interferon production. The optimal cell concentration for interferon induction is about 106 ce...

本文研究了类淋巴母细胞干扰素的诱导特性：Namalwa细胞系的干扰素诱生能力大于Raji和余奴系，而诱生剂中以NDV和仙台病毒诱生干扰素的能力较大，但"起动"和超诱导均无作用；诱生干扰素适宜的细胞浓度为10~6/毫升；增殖期的Namalwa细胞诱生能力较大；黄芪和5'-溴脱氧尿嘧啶核苷对Namalwa细胞干扰素的诱生系统有明显刺激作用，在最适条件下粗制干扰素平均滴度可达40，000单位/毫升。

The first stage of meiosis, constituted by a series of events that include DNA replication, the synapsis of homologous chromosomes, crossing over, the formation of chiasmata, and contraction of the chromosomes.

前期阶减数分裂的第一个阶段，由一系列的事件组成，包括脱氧核糖核酸的复制，同种染色体结合、交叉，染色体形成以及染色体的收缩一套，一系列

The first stage of meiosis ,constituted by a series of events that include DNA replication,the synapsis of homologous chromosomes,crossing over,the formation of chiasmata,and contraction of the chromosomes.

前期阶减数分裂的第一个阶段，由一系列的事件组成，包括脱氧核糖核酸的复制，同种染色体结合、交叉，染色体形成以及染色体的收缩

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。