牵引

We concluded that the Spidroin2 cDNA of Nephila clavipes can be expressed in prokaryotic expression system, and addition of exogenous alanine plays important role in the promotion of expression of the naive gene of spider silk protein.

本研究证实，蜘蛛牵引丝蛋白Spidroin2 cDNA可在原核细胞内正确表达，外源丙氨酸的加入对于提高天然蜘蛛丝蛋白基因在原核系统的表达作用明显。

Based on the cloning of Spidroin2 cDNA of Nephila clavipes (Genbank Accession No. AF441245), we constructed a prokaryotic expression vector pET-28b-Sp by double digestion.

本研究在获得生长于中国的Nephila clavipes蜘蛛牵引丝蛋白Spidroin2 cDNA（Genbank Accession No。

The patients of treatment group were treated by neurolysis of spinal nerve root canal with acupotomy,traction,acupuncture,massage and traditional chinese drugs based on differentiation; The patients of control group were treated by the same therapy as that of ...

治疗组20例给予小针刀神经根管松解术、牵引、针灸、推拿及中药辨证施治内服；对照组20例给予小针刀神经根管假松解术，其他治疗与治疗组完全相同。

The major impact is on less traction on the neurovascular bundle.

其主要的缘由是对神经血管束较低的牵引。

In my study, a three-dimensional finite element model of human cranial-maxillary complex osteodistraction was established. The stress distribution and displacement under different loads were evaluated. The experiment results were feasible and effective to the stress analysis in the process of orthodontic and orthognathic treatment.

本实验通过建立颅上颌复合体三维有限元模型，分析上颌骨LeFort Ⅰ型截骨后牵张成骨的生物力学特性，明确在不同牵引方向时上颌骨复合体各部位的应力分布特点及位移趋势，为临床改良和优化颅面部牵张成骨的治疗方案提供一定的参考依据。

The objects of this research were AngleⅢmalocclusion osteal cross bite patients who were treated by maxillary protraction therapy combined with rapid palatal expansion in the Department of Orthodontics, Stomatological College of FMMU, and they were divided into three different groups by age: the 3～6 years group, the 7～10 years group and the 11～13 years group.

本研究以在第四军医大学口腔医院正畸科行上颌前方牵引联合上腭快速扩大治疗的安氏Ⅲ类骨性反牙合病例为研究对象，并按年龄将其分为3～6岁组、7～10岁组、11～13岁组。

Through comparing and analyzing the photographs of Cephalometrics before orthodontics, after orthodontics and two years after orthodontics, we can probe into the optimal period for treating AngleⅢmalocclusion osteal cross bite patients with maxillary protraction therapy and the long period of stability after the accomplishment of orthodontics, and it can provide reference and theoretics for clinic practice and experiments.

通过对不同年龄组患者矫治前、矫治结束时及矫治结束两年后的头颅侧位片进行定点、描绘、测量、比较分析，进而探讨上颌前方牵引治疗安氏Ⅲ类骨性反牙合的最佳矫治时机以及矫治结束后的长期稳定性，为进一步的临床实践与实验研究提供理论依据。

The Otterhound should be shown on a loose lead.

奥达猎犬的牵引应该显得松弛。

The Otterhound should beshown on a loose lead.

奥达猎犬的牵引应该显得松弛。

When the maglev train is running, the speed and position detection sensors are affected by the shake of the train and the joint of long stator track, also the size of the joint is different, which can badly affect the signal of the sensors in speed and position detection system. This can cause overcorrect or overvoltage protection in traction system and even can damage the traction equipment.

磁浮列车测速定位传感器在实际运行时，会受到列车震动和长定子轨道的接缝等影响，并且轨道接缝的尺寸也不相同，使得位置传感器在通过不同轨道接缝的时候产生不同的信号畸变，导致牵引设备过流或过压保护甚至烧毁。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。