糖苷,是糖或糖的衍生物与另一类非糖物质通过糖的端基碳原子链接而成的化合物。
Glycosides are certain molecules in which a sugar part bound to some other part through its anomeric carbon to another group.
就在刚刚,他用斧子另一端猛敲了妮基的头一下,将她的颅骨敲断裂成了三块。
He had just hit her over the head with the blunt end of an axe, fracturing her skull in three places.
在超选微导管置入后,向撕裂血管的近端或损伤血管的残端轻缓注入N-羟丁基2-氰基丙烯酸酯(NBCA。
N-butyl 2- cyanoacrylate (NBCA) is gently deposited proximally to the arterial tear or at the level of the stump of the traumatized artery after superselective microcatheterization.
肟的合成和药理学评估以及酸性端基的结构变化。
Synthesis and pharmacological evaluation of oxime and acidic head group structural variations.
引发体系中的微量水分是影响环氧乙烷环氧丙烷无规聚醚起始端基结构,并进一步影响其分子量和使用性能的重要因素。
Trace water in the initiator system is an important factor which affects the initiating terminal group structure and the performance of the random copolymer of ethylene oxide and propylene oxide.
纺织陶瓷基复合材料在航空航天器的热端部件有着广阔的应用前景。
Ceramic matrix textile composite has been widely used as components in hot end of aeronautics and astronautics.
氧气、水或醇、酸、碱或残留催化剂、硅油、机械外力、填料、聚硅氧烷的链端基等都会影响聚硅氧烷的热稳定性。
Accordingly, the thermal stability of polysiloxanes may be influenced by oxide, water, alcohol, acid, base, residual catalyst, silicone oil, mechanical stress, filler or the end groups of itself.
讨论了不同的端基对偶氮生色团在自组装膜中初始取向的影响。
Influences of substituents on the orientation of the azo chromophores were discussed in detail.
目的:考察不同种植基桩桩径对游离端缺失种植固定桥支架适合性的影响,以探讨临床上有无内冠与支架适合性的关系。
Objective: To compare the effects of the posts with different diameters and with or without core on the fitness of framework for free end implant bridge.
基于基库的多实化视图维护将基库集作为多个实化视图的辅助视图集保存在集成端。
The radical database collection which are considered as auxiliary views of multiple materialized view are saved on the integration point.
采用Z桨捏合机,将端乙烯基硅橡胶、气相法白炭黑及羟基硅氧烷进行混炼,制备了高强度硅橡胶混炼胶。
High strength silicone rubber compounds were prepared using vinyl-terminated silicone rubber, fumed silica and hydroxy siloxane by intensive mixing method in Z blade mixer.
端基为氮基的树状大分子对原油不具有降黏效果。
The dendrimers of amino as end group have no visbreaking effect on the crude oil.
利用普通自由基聚合中的链转移反应,分别制备了以羧基为端基的聚和以胺基为端基的聚(PNVP - NH2)。
Poly (N-vinylpyrrolidone) with carboxylic end groups and amino end groups (PNVP-NH2) were prepared by the chain transfer reaction in free radical polymerization.
佛冈花岗杂岩体是南岭地区最大的晚中生代岩基,乌石闪长岩角闪辉长岩是佛冈钙碱性系列花岗岩中最基性的端员。
The Fogang granitoid complex is the largest Late Mesozoic batholith in Nanling region, and the Wushi diorite-hornblende gabbros are the most basic end-member of Fogang calc-alkaline series rocks.
文中就目前已报道的化合物,从中心桥键、端基及中心骨架构成的角度对该类液晶的合成进行了综合论述。
In the paper, synthesis and development of the compounds are summarized respectively from three main angles including synthesis of central bond, skeleton and substitute group.
结论3,5 二硝基苯甲酰氧基作为良好的糖端基离去基用于寡糖的合成,具有反应条件温和、收率较高、立体选择性好的特点。
Conclusion The 3, 5-dinitrobenzoyl group was found to be a good leaving group at the anomeric position and O-glucopyranosides and oligosaccharides were stereoselectively synthesized in good yield.
对含取代氨端基的聚酯类超分散剂的合成方法进行了研究,并为获得适当长度的聚酯链选择了最佳合成条件。
A synthetic method for substituted amino-terminal group polyester hyperdispersants is researched and the optimum conditions for polyester chain with suitable length are chosen.
因此,通过改变固化温度和聚醚酰亚胺的端基来降低聚醚酰亚胺的表面能,可以在一定程度上调控反应诱导相分离体系的相结构,并获得相间距较小的双连续结构。
It suggests that the phase structure can be controlled by lowering the surface energy of polyetherimide and it is a possible way to obtain co-continuous structure with a smaller periodic distance.
以分子末端带有多官能度活泼端基的PAMAM等为原料,通过缩聚反应制备了一类新型体型缩聚物。
A novel class of three-dimensional polycondensates were prepared with PAMAM dendrimers having terminal multi-functional groups and other compounds, on the basis of polycondensation mechanism.
研究了不同的端基对聚苯乙烯的热稳定性的影响。
The thermal stabilities of the different end-functional polymers were investigated.
通过添加由端羟基丁二烯——丙烯腈共聚物(HTBN)制得的端异氰酸酯基预聚物,可改性环氧树脂。
Modified epoxy resin was produced by adding the isocyanate-terminated prepolymer obtained from hydroxy-terminated butadiene-acrylonitrile copolymer (HTBN).
通过对近年来国内外的文献综合,讨论了反应单体、聚氧烷基链和端基的选择、聚合物相对分子质量及其分布、减水剂添加量等对减水剂性能的影响因素。
The select ion of reactive monomer and oxyethylene group number, molecular weight of copolymer and its distribution, influence of terminal group and the amount of reducing agent added were discussed.
偶合终止生成的聚丙烯腈(PAN)分子含有2个引发剂引入的硫端基,分子链长度是其他终止方式生成的分子链长的2倍。
The coupling reaction produced 2 sulfradicals in a molecular chain of PAN with the length two times than that provided by other termination methods.
本论文研究目标是在常规阴离子聚合方法合成sbs的基础上,通过端基转化实现了SBS与极性单体共聚。
Based on the general synthesis of SBS by anionic polymerization mechanism, we have carried out the copolymerization of SBS with several polar monomers by conversion of end-group of SBS.
由聚丙烯腈的红外光谱端基分析证实了MST组分与铈离子反应产生的自由基能引发烯类聚合。
The end group analysis of polyacrylonitrile by IR spectrum confirmed that the free radical produced by the reaction of MST and eerie ion could initiate the polymerization of vinyl monomer.
他们是由固定在地面上的两个大的塔基,一个桥面和一些固定在两端塔基上面的钢缆组成。
They consist of at least two large towers anchored to the ground, a roadway, and a web of steel cables strung between the towers and from each tower to the anchorages at either end.
目的:探讨双侧游离端可摘局部义齿的不同固位装置对基牙的影响。
Objective: To study the influence on the displacement of abutment with various retainer designs for bilateral distal-extension removable partial dentures (RPDs).
结果表明:菜心的茎端生长点、菜苔及基茎均存在CT K类物质。
The results showed that CTK existed in the growing tip, the flowering stalk and the it's base part.
从计算实践中总结出“尺寸匹配原则”,以达到消除端基影响和避免模拟偏离实际的目的。
Above all, the "Principle of dimension matching" was summarized from the practice, so that the effect of chain-terminating atoms would be ignored and the deviation of simulation was reduced.
从计算实践中总结出“尺寸匹配原则”,以达到消除端基影响和避免模拟偏离实际的目的。
Above all, the "Principle of dimension matching" was summarized from the practice, so that the effect of chain-terminating atoms would be ignored and the deviation of simulation was reduced.
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