牵引

Objective To observe and evaluate the profile changes after maxillary protraction treatment for Class Ⅲ malocclusion.

目的 观察与评价上颌前方牵引矫治器矫治骨性Ⅲ类错后软组织侧貌的变化。

Part Two: 3-D Finite Element Method Study on Maxillary Protraction Objective: To explore the change rule of stress、 strain and displacement of craniofacial complex against different strength and direction of maxillary protraction, so as to provide the scientific basis for the selection of force system in clinical treatment.

第二部分上颌前牵引的三维有限元研究目的：探讨不同大小和方向的前牵引力对整个颅面复合体的应力、应变和位移变化规律，以达到为临床力系统的选择提供科学依据的目的。

The maxillary protraction with orthopedic force is often used to treat those with the primary deformity of maxilla underdevelopment.

其中，以上颌骨发育不足为主要畸形表现的患者，临床常采用矫形力牵引上颌骨向前进行矫治。

ObjectiveTo determine the rule of simulated protraction and palate expansion on shift of maxillary bone,and to supply the scientific data for treating maxilla in patients with cleft lip and palate.

在自主探索建立的唇腭裂上颌骨三维有限元模型的基础上，利用ANSYS 10.0软件模拟上颌前牵引和上颌扩弓，分析比较前牵引力作用下上颌骨的位移变化。

Objective To observe the clinical effects of massage and three-dimensional traction in the treatment of lumbar intervertebral disc protrusion.

目的观察推拿配合三维牵引治疗腰椎间盘突出症的临床疗效。

It is a way to pull the Earth out of the dark into the Light.

它是一种从黑暗中牵引地球进到光里的方式。

Before using the crank puller, make sure it is fully extended so that the internal driver does not extend past the external threads.

使用前曲柄牵引，确保它是完全扩大，使内部的驱动程序并不适用于过去的外部线程。

By examines the system pressure and the pump house hauling condition and sends in the examination value first PLC.

以先检测系统压力和泵房牵引状态并把检测值送入PLC。

Quadra Drive II, with a rear Electronic Limited-Slip Differential, delivers industry-leading tractive capability.

外接驱动器二型后方电子限滑差速器，提供业界领先的牵引能力。

Conclusion. We think that intraoperatie reduction by asymmetric traction is a reliable and safe technique to correct neuromuscular scoliosis and pelic obliquity in nonwalking spastic quadriplegic patients.

我们认为通过不对称牵引进行术中复位是纠正不能行走的痉挛性四肢瘫痪病人神经肌肉性脊柱侧凸和骨盆倾斜的可靠和安全的手术方法。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。