牵引的

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。

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。

In order to match the requirements of water treatment engineering, considerable attention was paid to develop composite inorganic polymer flocculants during recent years, which are represented by polyaluminum silicate chloride, polysilicate ferrite and polysilicate ferric aluminum.

受水处理工程需要的牵引，以聚硅氯化铝、聚硅酸铁及聚硅酸铁铝为代表的三大类新型复合无机高分子絮凝剂的开发研制及应用研究近年来受到格外的关注，取得了不少新成果。

Along the impersonal need of our country's railroad reformation and development,analyse the opportunity and challenge and enterprise stratagem of the JNX locomotive depot which shoulder the task of locomotive draught in the railage net ,illustrate that locomotive examine and repair is the core action in the depot management.

根据我国铁路改革发展要求，分析了在铁路运输网中担任机车牵引任务的机务段所面临的机遇与挑战以及所采用的企业战略，阐明了机车检修管理在机务段管理中的核心作用。

Halo traction is a well-recognized adjunct for correcting severe, complex, rigid scoliotic curves.

环形架颈牵引是一种公认的治疗工具用于纠正严重的、复杂的、僵硬的脊柱侧凸曲线。

Objective: To explore the relationship of the clinical effect difference and changes of neck's curvature after different pulling treatment on cervical spondylopathy.

中文摘要：目的：探讨不同的牵引方法治疗颈型颈椎病的临床疗效的差别及颈曲变化之间的关系。

On the basis of engineering experience,the construction technologies for translatory moving by gasbag,transportation by semi-submerged and intallation of caissons are discussed.

结合某码头工程施工的实际情况，对沉箱气囊平移出运、半潜驳运输及安装的施工技术进行探讨，对出运气囊的布置、顶升气压计算、牵引系统布置及沉箱下水滑动安全验算进行了详细介绍，并提出保证安全与质量的计算模式和措施

Gear rotation is a main rotation fashion of coal winning machine.And the rotation of engine unit and cutting unit is uniflow gear rotation.It is a main task for designer to improve the rotation character and carry ability of gear.

齿轮传动是采煤机械的主要传动方式，无论牵引部和截割部的传动均为单流齿轮传动，如何在不加大制造成本的情况下，改善齿轮传动特性，提高承载能力，是采煤机设计者的主要任务。

Furrowing opener is one of important components in seeding and fertilizing. They often work in the soil with high moisture content. Soil adhesion on the surface of furrow opener increase the drag resistance considerably, makes the opened furrow irregular and depth of furrow not uniform, influences the performance of seed and, sometimes, makes them stop working. All these phenomena will influence the seeding quality.

开沟器是播种机、施肥机上的重要部件，在含水量较大的土壤中工作时，土壤粘附在工作表面，改变了表面形状，导致牵引阻力增大，开出的沟形不整齐，使种子在沟中的深度不一致，影响播种质量，严重时使出苗率降低10%，甚至使其无法作业。

The unique, multi-directional design and placement of lugs provide the traction necessary to handle all the elements.

独特的，多方位的设计和安排派提供了必要的牵引处理的所有情况。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐