重复

Based on the methylation analysis of the glycan and 〓C NMR spectroscopy of the glycoconjugate, one of the probably structure of repeat unit of the glycoconjugate was estimated as follow:- [→4 βGlcp (1→4)βGlcp (1→4)βGlcp (1→4)βGlcp (1→4)βGlcp (1→4)βGlcp (1→4)-βGlcp (1→4)βGlcp (1→] 〓→4)βGlcp (1→3)βManp (1→3)βRhap (1→3)βRhap (1→3)-↓↓βGalp βArap -βRhap (1→3)βRhap 1→ GFPE, which was the extracellular polysaccharide, was sulfated and the production was called GFPEs, which sulfated radicals content was 20.02%.

以甲基化反应及核磁共振的方法分析糖链结构，假设糖链GFPI-g具有重复结构单元，其可能的一种重复单元结构为：〓对灰数花胞外多糖GFPE的硫酸化修饰产物命名为GFPE-s，硫酸根含量为20.02％。

False positive were lowered to an acceptable rate by this protocol, therefore, a big amount of work on fingerprint to get rid of false positive clones can be avoided. When whole BAC clone containing one locus of a multi-loci probe were applied for library screening, no matter homogenic BAC or heterogenic BAC, site-specificity is higher than short DNA fragment probes.

对于无法通过小基因组填补间隙的区段，可以本物种BAC克隆直接进行染色体步移，采用抑制重复顺序杂交法能够有效抑制大量存在于植物基因组中的重复顺序的干扰，把假阳性率降低到可以接受的范围，从而避免了用大量指纹分析剔除假阳性克隆。

The dinucleotide repeat motif was the most abundant SSR, accounting for 54%, followed by 22%, 13%, 7% and 4%, respec-tively, for tri-, hexa-, penta- and tetra-nucleotide repeats.

在 2-6 bp 的重复基元中，二核苷酸重复基元的SSRs出现频率最高(54%)，依次是三核苷酸(22%)，六核苷酸(13%)，五核苷酸(7%)和四核苷酸(4%)。

Telomere, a complex structure present at the ends of eukaryotic chromosomes, consists of tandam arrays of highly conserved hexameric repeats in vetebrates. Its function is to protect DNA from degradation of deleterious recombination.

端粒是由许多简单重复序列及相关蛋白组成的染色体末端复合结构，端粒酶是具有逆转录酶特性的核糖核蛋白复合物，能以自身的RNA为模板合成端粒重复序列，加至新合成的DNA链末端，维持端粒平衡从而保证染色体末端结构完整性及解决末端复制问题。

The affinity among hybridizable species can also be speculated by the extent of homology of their repetitive DNA.

高等植物DNA的很大部分是由重复顺序所构成，本文讨论了检测亲本及子代基因组内重复顺序的异同程度作为远缘杂交的分子水平指标是简便可行的。

Based on average current mode, PI control adopts the same double loop structure as analog control; Repetitive control adds a feedback innerly to change the model of control object so that it can meet the requirements of stability. This equals to a three-loop structure.

PI控制的设计基于电流平均模式，与模拟控制的双环结构相似；重复控制的设计，内部增加一个负反馈，以改变控制对象的模型，使之满足重复控制的稳定性要求，相当于一个三环控制结构。

Gondii, were cloned by PCR respectively. The PCR products were digested by the corresponding enzymes and ligatd into the intermedial vectors. Finally, the inducible RNAi vector, pBSK-HSP70/5UTR-IntronC-HSP70/3UTR, with the HSP70 gene promotor as a promotor, the intron C sequence ofβ-tubulin gene as intervening sequence, 3UTR sequences of HSP70 gene as transcription stop signals, was constructed successfully, and the results of sequencing were correct. 3The construction of the inherited and inducible RNAi vector system of T. gondii: The fragment of SAG1/5UTR-eGFP-SAG1/3UTR in pBSK-SAG1/GFP vector was cloned into the vector of pBSK-HSP70/5UTR-IntronC-HSP70/3UTR to construct pBSK-GFP-Hairpin vector, then the fragment of GFP-Hairpin in pBSK-GFP-Hairpin vector was cloned into pHANA-0.5 vector.

弓形虫可诱导的反向重复序列RNAi载体的构建：设计引物，通过PCR分别扩增弓形虫HSP70基因5&UTR启动子序列(HSP70／5UTR)、HSP70基因3&UTR序列(HSP70／3UTR)及β-微管蛋白基因内含子C序列，通过酶切连接，构建以弓形虫热休克蛋白HSP70基因启动子进行驱动的，以β-微管蛋白基因内含子C序列作为间隔序列，以HSP70基因3UTR序列作为转录终止信号的反向重复序列RNAi载体pBSK-HSP70／5UTR-IntronC-HSP70／3UTR，序列测定结果正确。

Comparing with the traditional way of stronger sulfuric acid ,The catalyst has its advantage of more effective on the synthesis,the operation is more safer, does not corrode the equipments and does not pollute the environment,and the recovering operation is simple. So it can be called a green method on synthesis of isobutyl acetate.

该催化剂与传统浓硫酸法相比，催化效果更好，作更安全，对设备无腐蚀，对环境无污染，实现了催化剂的重复利用，并且回收作简单，重复利用率高产率好，达到绿色合成乙酸异丁酯的目的。

Regarding to test method standard, the setting of Chinese woolen standard is not systemic. For instance, the amount of test method for all kinds of woolen fiber quantitative analysis is far more numerous in China and the principles of the standards are iterant.

国内标准中，各类纤维定性定量分析（尤其是各类毛纤维的定量分析）方法标准以及毛纤维的某些测试方法标准的数量多，内容却分散或重复；毛织物产品标准按生产工艺与织物成分划分，同类织物间考核要求重复，考核项目多，标准格式的兼容性差。

They play important roles in studying the liveness and fairness of Petri nets.

本文在对Petri网进行结构变化的基础上，研究了T-不变量、可重复向量、死锁间的关系，给出了一些新的算法去求解一个网的可重复向量与死锁。

They go to town. Would you just ask them?

他们在城里你能问他们吗？

Ossein pretreated for a2 weeks period exhibited the maximum% yield incase of bone gelatin, while the yield from intact skin was higher than that realized incase of de-scaled skin.

预处理时间达2星期的骨胶原表现出最高的骨明胶百分产量，然而从未处理鱼皮中得到的产率比去鳞的鱼皮得到的要高。