查询词典 tri-ester

This paperindicated that it was good for condensation reaction when benzene-ring bearingelectron-attaching groups. It also showed that and the 6-hydroxyl group could bereacted with acyl halide, haloid ether and halo alkene, but not with halo alkane. It wasnot only the first time to find that the reaction product of D-mannitol and aromaticaldehyde is tri-condensation derivatives, but also the first time to obtain thep-phthaldehyde-sorbitol derivatives containing eight hydroxyl groups.

研究发现：苯环上有吸电子基团时对缩合反应有利；多元醇缩醛衍生物6-羟基除与酰氯反应外，也能和卤代酸酯、溴代烯反应，但不与卤代烷反应；首次发现D-甘露醇与醛反应主要得到三缩合物；首次合成了含有8个羟基的对苯二甲醛和山梨醇的缩合物。

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%)。

Examples of monomers which have on average not less than 3 cross-linking groups per molecule include for example tri, tetra, penta and hexa functional isocyanates, alcohols, amines, epoxys,acrylates, siloxanes and imines.

其中的单体平均不超过3交叉连接不到每分子团体有例子包括，例如三，四，五溴和六功能异氰酸酯，醇，胺，epoxys，丙烯酸酯，硅氧烷和亚胺。

Compared with the dicot, the monocots preferred GC-rich tri- and hexa- motifs very much, especially in rice where 23.6 CCG motif occurred in 100kb ESTs.

与双子叶植物大豆相比，单子叶植物似乎更偏好富含GC的三碱基和六碱基重复单元，特别是水稻中平均每100kb EST就有23.6个CCG类型的SSR出现。

The frequency of EST-SSRs was 6.3%. The dinucleotide repeat motif was the most abundant SSR, accounting for 71.8%, followed by 9.1%, 8.1%, 5.7% and 5.3%, respectively,for tri-, hexa-, penta- and tetra-nucleotide repeats.

结果表明，从绵羊皮肤组织相关的EST序列中搜索到微卫星209个，含有微卫星的序列196 个，占整个EST 序列数据库的6.3%，其中双碱基重复150个，三碱基重复19个，四碱基重复12个，五碱基重复17个，六碱基重复11个。

By amending the auxiliary geometric primitive,diagonal,of generalized tri-prism into tetrahedron ,the inconsistentness of data organization and of geometric primitive in real 3D geosciences modeling as well as the geometric interstice in spatial operation were solved.

将广义三棱柱的辅助几何要素———对角线———修正为四面体，解决了R3DGM中数据组织与几何要素的不一致和空间操作中的几何裂缝问题。

Inspective method ; serum total cholesterol ; tri-fatty acid glycerol ; high density lipoprotein-cholesterol

检测方法；血清总胆固醇；甘油三酯；高密度脂蛋白胆固醇

Tri (2-hydroxyethyl) isocyanurate was used as the curing agent to synthesize the polyurethane elastomer modified by isocyanurate.

以三（2-羟乙基）异氰脲酸酯为固化剂，用异氰脲酸酯环合成改性聚氨酯弹性体。

D limonene was distributed among the culture flasks (200 mg/L). The flasks were incubated at 28oC on a rotary shaker (r/min=120) for 5 days. On completion, the culture broth were successively extracted with EtOAc. The extract was quantitatively measured by gas chromatography mass spectrometry analysis, The results showed that biocatalytic reactions were comprised of oxidation, including hydroxylation and ketonization which occurred at different positions of the D limonene, as well as hydrogenation, hydrolyzation, esterification and cyclic cleavage. These bacteria strains possess the distinctive biocatalytic capacities towards the D limonene. A series of terpenoids, including sesqui , di and tri terpernoids were also observed,which was accounted for D limonene had influence on the metabolites of marine bacteria.

以2216E为培养基，添加200mg/L的柠檬烯，在28℃，以120 r/min摇瓶培养5 d，用乙酸乙酯提取培养液，经GC MS分析其转化产物，结果显示，这些细菌能在柠檬烯的不同位置进行羟基化、羰基化等，并伴随有还原、水解、酯化、开环等反应，但转化能力和转化程度不同；在产物中，还检测到系列结构不同的其它萜类：包括倍半萜、二萜以及三萜等，这些萜类化合物的产生跟柠檬烯的加入有关，说明柠檬烯能影响细菌代谢产物的产生。

In order to overcome the defect of traditional methods and to find a new simply and effective time-domain method to eliminate the influence of boundary reflection. The main contents of studies and achievements are as follows: The liquefiable saturated sand dynamic character researches are conducted by means of the resonant column test and the dynamic tri-axial test; The undrain dynamic relationship between stress and strain, the damping ratio, saturated sand liquefaction mechanism, laboratory liquefaction standard, the effective factors of liquefaction are considered in laboratory. Liquefaction strength parameters used in element numerical simulation are obtained.

为克服传统方法存在的问题，寻求一种简单有效、能消除截断边界反射影响的时域有限元方法，本文主要开展了如下研究工作：对工程场地土体进行了标准贯入、静力触探、剪切波速等现场原位试验、室内动三轴试验以及共振柱试验，针对研究区域内可液化的饱和土进行了动力特性试验研究，分析了饱和土体的不排水动应力～应变关系和阻尼特性；对研究区域内的饱和砂土的液化机理，室内试验液化判别标准及影响饱和砂土液化的诸多因素进行了研究，得出了工程场地土体的抗液化强度指标等有限元模拟所需参数。

He became prime minister in 1997 and won international acclaim for his role in the Northern Ireland peace process.

他在1997年成为总理，并且因为在北爱尔兰的和平进程中发挥的作用受到国际社会的赞许。

Mixed Page Sorting Method Using the cuttable user model, this thesis proposes a mixed page sorting method by using cutted user model in server-side and complete user model in client-side.

隐私分级利用的混合式页面排序方法针对个性化搜索中搜索结果排序的问题，本文利用隐私可控开放的用户偏好模型，提出一个在客户端和服务器端分步进行的隐私分级利用的混合式页面排序方法。