查询词典 Chain Reaction

They can exist in a chain form or in a ring formed by reaction of the ketone or aldehyde group with an – OH group on one of the carbons at the other end of the chain.

它们有链式和环式。环式结构的形成是酮基或醛基与碳链另一端的羟基发生反应而相结合。

Falciparum isolates prepared directly from 5 cases of cerebral malaria patients'blood in Mengla County, Yunnan Province and in Yingjiang County, Yunnan Province were used for polymerase chain reaction amplification and the two pairs of oligonucleotides for the highly conserved genes encoding the regions 12—17 in MAD20 merozoite surface protein 1(MSP1) of Papua New Guinea strain of P . falciparum were used as primers. The PCR products were digested with EcoRI and KpnI, respectively, and the generated fragment regions 16—17 were cloned into M13mp18 and M13mp19 vectors and their DNA were analyzed as the templates for DNA sequencing by the dideoxy chain-termination method.

应用多聚酶链反应技术对中国5 例脑型疟患者恶性疟原虫云南省勐腊县勐罕CMH/YN 分离株和云南省盈江县农场CYJ/YN 分离株基因组DNA 裂殖子表面蛋白1 (MSP1)第13—17 区基因进行扩增，将扩增产物分别经EcoRI 和KpnI 双酶切后，回收的MSP1 第16—17 区基因分子定向克隆M13mp18 和M13mp19 载体，按Sanger 双脱氧链终止法进行DNA 序列测定，并与MAD20、K1 和Wellcome 株原型基因进行同源性分析比较。

Methods Genomic DNA samples of two isolated Plasmodium falciparum isolate strains prepared directly from 5 cases of cerebral malaria patients′ blood in mengla County, Yunnan Province and in Yingjiang County, Yunnan Province were used for polymerase chain reaction amplification and the two pairs of oligonucleotides for the highly conserved genes encoding FC27 merozoite surface protein 2 (MSP2) of Papua New Guinea strain of Plasmodium falciparum were used as primers. The PCR products were digested with BamH1 and Hind Ⅲ respectively, and the generated fragment MSP2 were cloned into M13mp18 and M13mp19 vectors and their DNA was analyzed as the templates for DNA sequencing by the dideoxy chain-termination method.

应用多聚酶链反应对5例中国脑型疟患者恶性疟原虫云南省勐腊县勐罕分离株和云南省盈江县农场分离株基因组裂殖子表面蛋白2(MSP2)基因进行扩增，将扩增产物分别经BamHI和Hind Ⅲ双酶切后，回收的MSP2基因分子定向克隆M13mp18和M13mp19载体，按Sanger双脱氧链终止法进行DNA序列测定，并与恶性疟原虫株FC27、K1、IC1和CAMP株进行同源性分析比较。

In the process of reaction, the degradation of the polymer follows a random chain scission mechanism. Every part of the molecular chain has an equal reactive probability.

反应过程中PHB 分子链各处具有相同的反应几率，分子链无规断裂。

Either the fading or dying of any sector could correspondingly impose an menace on the part below or above, consequently , to result in the breakdown or collapse of the whole chain-- incurring a ruin as chain reaction to vandalize biodiversity.

任何链节的减少或者消亡都会对这个链节的上一个或者下一个产生威胁，最后导致整条链的破坏和瓦解--进而产生连锁反应破坏生物的多样性。

Either the fading or dying of any sector could correspondingly impose an menace on the part below or above, consequently , to result in the breakdown or collapse of the whole chain- incuring a ruin as chain reaction to vandalize biodiversity.

任何链节的减少或者消亡都会对这个链节的上一个或者下一个产生威胁，最后导致整条链的破坏和瓦解--进而产生连锁反应破坏生物的多样性。

To investigate the clonal rearrangements of immunoglobulin heavy chain gene and T-cell receptor γ gene in peripheral blood cells of patients with hemapoietic malignancies and their significance, the clonal rearrangements of IgH and TCRγ genes were detected by polymerase chain reaction in peripheral blood cells of patients with hemapoietic malignancies, including 32 cases of non-Hodgkin lymphoma, 18 cases of acute myeloid leukemia, 24 cases of multiple myeloma, 8 cases of acute lymphoblastic leukemia and 6 cases of chronic lymphoblastic leukemia.

检测各种血液系统肿瘤患者外周血细胞免疫球蛋白重链基因和T细胞受体γ基因克隆性重排并探讨其意义。通过多聚酶链式反应方法检测32例非霍奇金淋巴瘤、18例急性髓性白血病、24例多发性骨髓瘤、8例急性淋巴细胞白血病及6例慢性淋巴细胞白血病患者外周血细胞IgH及TCRγ克隆性基因重排。

Due to great amount of double bond on rubber chain,a lot of intramolecular reaction occurred in the system,which made the uncontrolled cross-linked system into a controlled cross-linked copolymerization,resulting in chain growth can't go illimitably in cross-linking process.

苯乙烯和二乙烯苯共聚体系是典型的不可控制的交联聚合体系，加入天然橡胶后，通过阳离子聚合方法，生成三元共聚物线团，由于橡胶分子链上含有大量的双键，聚合体系中能进行分子内反应，使不可控的交联聚合体系成为可控的交联聚合体系，其链增长不能无限制进行，从而可以合成可溶解的交联的聚苯乙烯-二乙烯苯-天然橡胶聚合物。

E. the activation of amino acid, the elongation of peptide chain and the termination of the chain reaction, among which the activation of amino acid—the formation of imino acetoxyphosphoranes was the key step.

在这三步中，氨基酸的活化即氨基酸磷烷的形成是整个自组装成肽反应的最重要一步。

To enhance images, the plate is then fed into the warning to the processor unit, which will increase the energy of molecules, and have more monosomic cross-linking reaction occurs, the goal is to create long, as many as possible of the chain because the chain for the coating to provide hardness of preferences, and will affect the printed version in the business card printing machines have their life.

为了放松影像，印版置入到冲刷机的预热单位，这不兵为分子补充能量，并让单体爆发更众交联不正响，其纲的是创设尽不定不幼、尽不定众的链，因为链是为涂层供答硬量的不主给成分，并会感化印版在制卡机上的寿命。

I had a lovely dog named PiPi, he was one of my best friends.

我曾经有过一只小狗，它的名字叫皮皮，它很善良，它是我最忠实的朋友。

Newly ovulated mouse oocytes were cultured in the CZB medium supplemented with different concentrations of pyruvate before treated for activation or assayed for MPF activity.

我们猜测卵母细胞在不含丙酮酸的条件下老化的更快，并且卵丘细胞可能通过消耗不含葡萄糖的CZB中的丙酮酸从而促进卵母细胞老化。