1. Formation center tester(FCT) is made up of hydraulic power joint, double PACKER joint, opposing infuse joint, numeric pump exhausting joint, sensor joint and sampling tube joint. 钻井油气层测试器是由液压动力短节、双PACKER短节、反向注入短节、数字泵抽短节、传感器短节和取样筒短节组成的。
2. Objective To study the range and change of stress in normal radiocarpal joint. 目的研究正常桡腕关节内应力分布及其变化规律。
3. The release of TCL resulted in radial and palmar displacement of the scaphoid, flexion and radial rotation of radiocarpal joint as well as a further radial deviation of the whole carpal tunnel. 腕横韧带的切除导致舟骨发生向桡侧和掌侧的偏移，以及掌向屈曲和向桡侧的转动，而整个腕管结构则产生更大的桡侧偏移。
4. The shoulder is a complex joint which consists of sternoclavicular joint, clavicle, acromioclavicular joint, scapula, glenohumeral joint, proximal humerus and scapulothoracic joint. 肩关节是由胸锁关节、骨、锁关节、胛骨、肱关节、骨近端以及肩胛胸壁关节共同组成的复杂结构。
5. The material choice, moulding method, joint principle and shape design of hinge joint, hasp joint, clamp joint and press fit joint of normal plastics were introduced. 介绍常用塑料铰链联接、搭扣联接、卡夹联接、压力装配联接的联接件材料选择、成型方法、联接原理、形状设计等。
