查询词典 signet ring

To result in 20 percent left tibia middle and inferior diaphyseal defect of every goat and fixed with half-ring sulcated external fixator.

在体支架材料内BrdU标记自体MSCs增殖的大动物示踪研究：培养山羊MSCs，传至第三代，细胞同步化后加入BrdU培养。

Knee joints were obtained from healthy male Chinese corpses and immobilized on half-ring sulcated fixators with the joints in a straightened position.

二、研究方法 1、选取正常国人男性尸体膝关节为标本，于伸直位时用半环槽支架固定。

Methods: Model of limb lengthening was established by upper metaphyseal osteotomy and fixed with a half-ring sulcated external fixator on rabbit tibia. Rate of distraction was 1mm per day (0.5mm each time).

以兔胫骨上干骺端截骨缓慢牵伸延长为动物实验模型，延长速度：1mm／d，分2次完成，延长幅度为原胫骨长度的10％、20％及40％三种。

Half-ring sulcated external fixator was used for the fixation.

专利号：CN01256565。方法：山羊24只，随机分为单纯异种脱蛋白骨组、自体骨组及异种脱蛋白骨＋重组人骨形态发生蛋白组，在每只山羊右侧胫骨中下段截除胫骨总长度20%形成节段性骨缺损，按分组情况植入不同材料，采用半环槽式外固定器固定。

The properties of microcapsules,including the surface morphology,the size and distribution were characterized using optical photographic microscopy.Surface tension of the surfactants and interfacial tension of oil /water for sodium dodecylbenzene sulphonate solutions at different concentrations were determined by ring method.

采用光学显微镜表征微胶囊粒径大小及分布、表面形貌等性质，用圆环法测定表面活性剂溶液的表面张力和不同十二烷基苯磺酸钠浓度水溶液/环氧树脂的界面张力，探讨了表面活性剂种类和浓度对MUF环氧树脂微胶囊粒径和形成过程的影响。

A sulfonated poly aryl ether with sulfonic group on naphthalene ring of side chain and preparation thereof, which is capable to solve technical problems of complexity in synthesis, hardness in controlling sulphonation position and degree, high possibility of side reaction in sulphonation, complexity in sulphonation and hardness to realize indutrialzation.

一种磺酸基在侧链萘环上的磺化聚芳醚及其制备方法，解决现有技术中合成方法复杂，磺化位置和磺化度难以控制，磺化过程中容易发生多种副反应，磺化工艺复杂难以实现工业化等技术问题。

It is found that when the molar ratio of sulphoxide,pyridine and acetyl bromide is 1∶0.6∶0.4,the catalytic effect on the ring-enlargment is the best,and the yield and purity of the final product can reach 76% and 97% respectively at a pH of 1.8 in toluene under refluxing for about 3.5h.

通过正交实验可得出以下结论：当N，N′-双脲-亚砜为2.5∶1，乙酰溴-亚砜为0.4∶1，吡啶-乙酰溴为1.5∶1，回流时间为3.5h，酸化pH值为1.8时，扩环反应结果最好，总收率可达76%，纯度97%以上。

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。

Please ring him up and find out about the plans for the summar vacation .

请给他打个电话，问问他打算如何度暑假。

The microsurgical techniques require gentle and careful operation in the establishment of ROLT. The rate of hemorrhage was very slow by reserving "phrenic ring" in the anastomoses of suprahepatic inferior vena cava.

应用改良的&二袖套法&建立稳定的大鼠肝移植模型需要轻柔细致的显微手术操作，肝上下腔静脉吻合时保留隔肌环可降低吻合口出血的发生率。

Objective:To explore the feasibility of laparoscopy in diagnosing and treating of abdominal diseases.

目的：探讨腹腔镜用以诊断腹部外科疾病及选择治疗方案的可行性。

The lifetime of nylon 1010 and nylon 1010/POSS composites decreased with increasing temperature.

热重-红外联用分析表明尼龙1010在氮气气氛下的降解产物主要为小分子的低聚物，POSS并不改变尼龙1010降解产物的组成。