抽提

The blends of PE-g-MAH and gelatin were prepared by melting process and the compatibility of PE-g-MAH and gelatin in blends were characterized. The results of FTIR showed that the characteristic absorption band peaks of amine and amide groups of gelatin were shifted in PE-g-MAH/Gelatin blends, the equilibrium values of torque were higher with the increase of blending temperature, which proved that graft copolymer PE-g-MAH-g-gelatin was formed during the preparation process, and the amount of PE-g-MAH-g-gelatin was increased with increasing the amount of PE-g-MAH. SEM micrographs exhibited that there was PE-g-MAH-g-gelatin formed in surface of gelatin phase.

通过红外光谱分析、HAAKE流变分析、抽提等实验证明：共混物中明胶的氨基、酰胺基团吸收峰峰位发生了明显的变化；在熔融共混过程中，随着温度的提高，平衡扭矩增大；明胶与PE-g-MAH发生了反应形成PE-g-MAH-g-明胶接枝共聚物，而且随着PE-g-MAH用量的增加，形成接枝共聚物的量也提高；SEM的实验结果表明，在明胶的表面确有接枝物形成；通过DMA测试共混物的玻璃化转变温度，发现两组分的玻璃化转变温度差值减小，二者的相容性提高，实现了共混体系的自增容。

It was shown that the absorption peaks of amine and amide groups of gelatin were shifted in HDPE/PE-g-MAH/Gelatin blends because of the reaction of PE-g-MAH with gelatin. The addition of PE-g-MAH made the increase of HDPE glass transition temperature. The compatibilizing effect of PE-g-MAH was due to the crystal compatibility produced by forming the co-crystals of HDPE, PE-g-MAH and PE-g-MAH-g-gelatin. The blends of EAA and gelatin were prepared by melting process and the compatibility of the blends was also studied. The FTIR results showed that absorption peaks of amine and amide groups of gelatin were shifted in EAA/Gelatin blends.

通过红外光谱分析、HAAKE流变分析、抽提等实验证明：共混物中明胶的氨基、酰胺基团吸收峰峰位发生了明显的变化；在熔融共混过程中，随着温度的提高，平衡扭矩增大；明胶与PE-g-MAH发生了反应形成PE-g-MAH-g-明胶接枝共聚物，而且随着PE-g-MAH用量的增加，形成接枝共聚物的量也提高；SEM的实验结果表明，在明胶的表面确有接枝物形成；通过DMA测试共混物的玻璃化转变温度，发现两组分的玻璃化转变温度差值减小，二者的相容性提高，实现了共混体系的自增容。

According to the boiling range, solvent oils can be divided into three categories: hydrocarbos solvent, such as the 6＃ oil extraction solvent, boiling range for 60-90 ° c; alkanones in solvent, such as rubber solvent naphtha, boiling range of 80-120 ° c; high-boiling solvent, such as oil paint solvents, boiling range for 140-200 ° c, in recent years the widely-used ink solvent naphtha, the stem is up to 300 ° c.

按沸程分，溶剂油可分为三类：低沸点溶剂油，如6＃抽提溶剂油，沸程为60-90℃；中沸点溶剂油，如橡胶溶剂油，沸程为80-120℃；高沸点溶剂油，如油漆溶剂油，沸程为140-200℃，近年来广泛使用的油墨溶剂油，其干点可高达300℃。

The paper used the method of paper papilioform in the microbiology to determine the antimicrobial cycle diameter of the mixed preservaties of different formul as that are composed of natural extraction with antimicrobial action, humectants, emulsifjers, preservatires and acidity regulators, and that of single preservative. The mixed formulas with strong antimicrbial power and big antibiogram were elected.

采用微生物学中的纸蝶法，、测定由具有抗菌作用的天然抽提物、水分保持剂、乳化剂、防腐剂以及酸度调节剂组成的不同配方的复配型防腐剂与单一型防腐剂的抑菌圈直径，筛选出抗菌力强、抗菌谱广的复配型配方。

This study tried to apply a non-invasive method to obtain DNA, which is helpful to research on the genetic background of crested ibises and other tiny population based on DNA level.

尝试在朱种群遗传学研究中应用非损伤性方法抽提基因组DNA ，以方便对朱等小种群珍稀濒危生物进行相关研究。

This study tried to apply a non-invasive method to obtain DNA, which is helpful to research on the genetic background of creste d ibises and other tiny population based on DNA level.

间亲缘关系较近。尝试在朱？种群遗传学研究中应用非损伤性方法抽提基因组DNA，以方便对朱？等小种群珍稀濒危生物进行相关研究。

Two phylogenetic footprints, 35 bp and 17 bp in length respectively, were found in 5' intron sequence.

在内含子的5'端发现了两个高度保守的序列——进化印记，长度分别为35 bp和17 bp，35 bp的核苷酸片段能与HeLa细胞和鸡胚细胞抽提物中的蛋白结合，可能是一种调节元件。

The zot gene encoding Zonula occludens toxin was amplified from classic Vibrio cholerae genomic DNA by PCR.

从霍乱疫苗菌中抽提基因组DNA ，用PCR的方法扩增zot基因。

The main aromatic production technologies are reviewed which included catalytic reforming, aromatic extraction, toluene disproportionation and transalkylation process, isomerization of xylenes and separation of PX.

分析了近年来国内外聚酯和对二甲苯的供需状况及未来需求发展趋势；介绍了当前芳烃主要生产技术，包括催化重整、芳烃抽提、甲苯歧化与烷基转移、二甲苯异构化和二甲苯分离等；指出了扩大芳烃原料来源、通过催化剂的改进提高甲苯歧化过程的对二甲苯选择性、提高C9及以上重芳烃处理能力、提高乙苯转化率等将是未来芳烃技术的主要发展方向。

Methods Genomic DNA from 61 samples of ascaridoid nematodes (Toxocara canis, Toxocara cati, Toxocara malaysiensis , Toxocara vitulorum and Toxascaris leonina) were collected from different geographical locations.

方法抽提61个弓首属蛔虫(包括犬弓首蛔虫、猫弓首蛔虫、马来西亚弓首蛔虫和犊弓首蛔虫)和狮弓蛔虫虫体的总DNA，用PCR方法扩增mtDNApnad4，然后用SSCP技术和DNA测序对序列进行分析研究。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。