Hand and wrist action

Based on an analysis of the relative shaft-to-hole position and attiude errors, as well as of the mechanics and Kinematics in the process of automatic assembly of industrial robots, the paper studies the principle of construction of dynamic wrists.

本文在对工业机器人自动装配过程中的轴孔相对位姿误差、力学和运动学进行分析研究的基础上，对动柔顺手腕结构原理作了深入探讨，设计、研制了一级三件和二级六件两种实用型动柔顺手腕，解决了柔顺件的制造和柔顺件与手腕的联结问题。

They are most likely caused by irregular movements in playing badminton and tend to appear in the wrists and the shoulder joints.

本文通过对羽毛球健身爱好者进行的问卷调查分析,结果显示:爱好者的运动损伤结果和专业运动员相比多为急性损伤,大多数是由于打球中动作技术不规范而引起的,且易发生的部位多在于手腕和肩袖处。

As far as the basic piano playing skills are concerned,the following points should be paid attention to: the support from fingers to palms will affect the quality of sound produced;wrists are the key parts which not only connect lower arms to fingers,but also function as an adjustor;elbows act as media in piano playing;and in addition,the use of the natural weight of arms is of extreme importance.

在钢琴的弹奏技能中,手指到掌关节的支撑直接影响弹奏过程中音色的质量,手腕是从手臂到手指之间的桥梁并且具有调节作用,肘部在弹奏过程中有着中介作用,手臂运用自然重量来弹奏极其重要,并且能想像出弹奏的音色,让身体利用原理产生必要的动作,在钢琴弹奏中使之能成为音乐意愿的表现。

Objective To explore the maturition of individual bones of the hand and wrist in girls with Turner syndrome (TS).

目的探讨Turner综合征(TS)患儿手腕部不同类型骨骼的成熟特征。

This study included three parts as follows:PartⅠanalyzed the growth of hand-wrist in Tianjin adolescents and compared with the CHN standard.

目的通过对天津地区9～16岁少年儿童手腕骨及颈椎骨发育状况的研究分析，探讨现阶段天津地区少年儿童的骨骼发育水平，以及手腕骨和颈椎骨成熟度对青春发育期的预测，并希望为临床正畸医生提供一个更准确地判断个体骨骼成熟度的量化方法。