查询词典 bud grafting

Through the analysis of the melt-grafting production which is obtained in different time, we can conclude the mechanism is: the St graft onto APP first, and form the stable styryl macroradicals, then MMA block onto the styryl macroradicals.

通过对不同时段的熔融接枝APP产物进行分析，推断其反应机理为：St首先接枝到APP上，形成稳定的苯乙烯大分子自由基，然后再与MMA发生嵌段反应。

The grafting is believed to take place principally through the active centers which are formed on the cellulose substract by the action of eerie ion.

可以认为，接聚反应的发生主要是通过铈离子与纤维素作用在纤维素上生成活性中心。

In a word, due to the introduction of sulfonic group, the carbon black with low grafting ration can has excellent dispersion stability in water.

由于磺酸基团的引入，低接枝率的接枝炭黑在水中就有了良好的分散稳定性。

A series of sulphonated SBS were achieved by reacting SBS blockcopolymer with sulphuric acid, meanwhile, the blends of PVC andsulphonated SBS were studied. By means of strength capabilityexamination and DSC analysis, it was found the miscibility wasincreased after SBS was sulphonated.2 The chemical grafting of styrene and PVC membrane2.1 The reaction condition of graftingBy means of the swelling and seepage of Styrene to PVC film,St was grafted onto PVC film by the initiation of BPO .

采用硫酸对热塑性弹性体SBS进行磺化，得到不同磺化度的产物，并对其与PVC的物理共混进行了研究；通过力学性能及DSC测试，发现SBS磺化后增加了与PVC的相容性(来源：Af2a2a2BC论文网www.abclunwen.com)。2 苯乙烯与聚氯乙烯膜的化学接枝2.1 苯乙烯与聚氯乙烯膜接枝条件利用苯乙烯对PVC的溶胀渗透，在过氧化苯甲酚的引发下发生接枝共聚反应。

In order to increase the number of grafting points, multi-amido polymers aminoehylaminopropyl poly(dimethyl siloxane and polyacylamide were first introduced to surface of PCU film, then grafted with APEG, finally, an ring-opening reaction of propane sultone on the PCPU surface was performed. The single hydroxyl PEG with sulfoammonium

用化学分析能谱分析聚合物表面元素，结果表明，与直接在表面接枝聚乙二醇衍生物的方法相比，先引入多官能团聚合物的方法明显提高了接枝率。

C Natural rubber modified by grafting or mixing with plastics,depolymerized natural rubber, mixtures of unsaturated syn- thetic substances with saturated synthetic high polymers provided that all the above-mentioned products comply with the requirements concerning vulcanisation, elongation and recovery inabove.

三与塑料接枝共聚或混合而改性的天然橡胶、解聚天然橡胶以及不饱和合成物质与饱和合成高聚物的混合物，但这些产品必须符合以上款关于硫化、延伸及回复的要求。

Objective To investigate a tragus reconstruction method by free composite tissue grafting of residual ear , in order to assess the value and indication of them .

目的：探讨利用残耳复合组织游离移植耳屏再造的方法，评价其优缺点及适应证。

ObjectiveTo investigate a tragus reconstruction method by free composite tissue grafting of residual ear, in order to assess the value and indication of them.

目的：探讨利用残耳复合组织游离移植耳屏再造的方法，评价其优缺点及适应证。

Grafting 2,3-Epoxypropyl trimethyl ammonium chloride on silk is an effective method to solve the dyeing problem of silk.

丝绸接枝阳离子是解决丝绸染色问题的有效途径。

Objective To observe the clinic effect of tumescent technique for skin grafting.

目的：探寻应用于皮肤移植术的简单、有效的麻醉方法。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。