关节

The front and rear suspension layout also allows the various joints, including the steering arm joints, to yield in a calibrated manner without this affecting driving precision.

前后悬挂布局也允许各种关节，包括转向臂关节，在经过校准的方式产生影响驾驶没有这个精度。

At the peak point of backward swing, the vertical height from the center of the ball to the ground was 1.34 ±0.01 meters, the angle of the shoulder was 82 ± 2.5 degrees and the angle of the elbow was 161.35 degrees. During release, the vertical height was 0.13 ±0.01 meters, the angle of the shoulder was 48.00 ± 3.64 degrees and the angle of the elbow was 160.71 degrees.

所得具体结果如下：在后摆最高点时，球体中心点距地面之垂直高度平均为1.34 ±0.01公尺，肩关节角度为82 ± 2.5度，肘关节角度为161.35度；而在出手瞬间球体中心点距地面之垂直高度平均为0.13 ±0.01公尺，肩关节角度为48.00 ± 3.64度，肘关节角度为160.71度。

Both of angular velocity of shoulder angle S(subscript S' and S(subscript F') or elbow angle E(subscript S' and E(subscript F') in frontal and sagittal view was having similar change pattern in second pull phase of snatch.

发力期肩关节矢状面角速度S(下标 S'与肩关节额状面角速度S(下标 F'有著相同的变化趋势，肘关节矢状面与额状面角速度E(下标 S'， E在变化上都有著相同的变化趋势。

Anda Bearing Corp. Ltd. is located at the side of No.330 national highway in Lishui, Zhejiang Province. It covers more than 5,000 square meters with beautiful view in and round the factory. The company has more than 30 years of engine processing history. It focuses on producing various bearings including:1. Linear movement ball bearing series: standard type, adjustable gap type, opening type, flange attached type;2. CF screw nut rolling wheel and rolling needle bearing series

安达轴承有限公司座落在秀山丽水的交通要道330国道旁，占地面积5000多平方米，厂区内环境优雅，是花园式工厂，本公司有三十多年机械加工历史，专业生产杆端关节轴承、直线运动球轴承、螺栓型滚轮滚针轴承、向心关节轴承，广泛用于自动化设备、印刷、包装、矿山、冶金、食品、电动工具、电力、轻工、航天等各种工业机械配套的专用轴承。

Methods 34 cases were divided into three group:traction group:6 cases,fixed by hollow screw thread;nail group:16 cases;artifical joint group:12 cases.

方法将34例老年股骨颈骨折分为牵引组、空心螺纹钉治疗组、人工关节治疗组，其中牵引组6例，空心螺纹钉组16例、人工关节组12例。

Objective: To investigate the possibility of CT-guided percutaneous fixation of cannulated lag screw on sacroiliac joint for treatment of pathologic pain of sacroiliac joint.

目的：探讨在CT引导下经皮微创技术置入空心拉力螺钉治疗病理性骶髂关节疼痛。方法：骶髂关节转移肿瘤患者8例，男4例，女4例；年龄12~83岁，平均53岁。单侧转移5例，双侧3例。肺癌2例，乳腺癌1例，卵巢癌1例，非霍奇金淋巴瘤1例，横纹肌肉瘤1例，骨髓瘤1例，前列腺癌1例。

METHODS: After treatment with percutaneous CT-guided fixation of sacroiliac joint with cannulated lag screw, the sacroiliac joint of the 8 patients became pathologically unstable.

对8例骶髂关节转移肿瘤患者试行在CT引导下经皮微创技术置入空心拉力螺钉稳定病理性骶髂关节不稳。

Based on the foundation of anatomizing the structure of robot, taking full advantage of parallel move performance of the double triangle boom of the rock-drilling robot ac-cording to the condition of the diversification of the boomend location brought by the change of each joint, integrating the knowledge of robot kinematics, an expert system is established to adopt the personate means, that is" the first toorientate the end, then to orientate the location "to realize the speediness orientation.

作者在分析凿岩机器人钻臂结构的基础上，利用钻臂的双三角支架的空间平移性能，根据各关节变化所引起的钻臂端部位姿的变化，综合机器人学中运动学知识，建立一个专家系统，采用拟人化的方案———&先定点，再定位姿&，解决凿岩臂的快速定位问题，以实现描述各关节位置的变量的快速逆运算。

An ion-implanted titanium alloy hip joint. Image courtesy of Oak Ridge National Laboratory.

译注：在人工关节的钛合金金属表面植入离子〈常为氮离子〉增加人工关节的硬度，减少磨损。

Description: This project shall adopt the double-mixing-shaft reciprocal rotary distribution design, with the vibration excitation/isolation system to be floating-connected by double-seated spring and hydraulic system adopting highly-dynamic performance proportion, making unnecessary a separate motor for driving and ensuring high compactness of blocks. The machine should make less noise than similar products, operate quickly, reduce the impact upon change of direction and save energy. Each joint should be linked with knuckle bearing and provided with lubricating device to prevent wear and tear. The automatic control system should use PLC and HMI display of operation, providing accurate and explicit detection of faults.

内容说明：本项目采用双搅拌轴往复旋转布料设计，激振隔振系统采用双座双弹簧浮动连接，液压系统采用高动态性能比例，可使砌块成型机不需要单独电机驱动，能保证砌块密实度大；机台噪声比同类机台小，运行快速，降低变向时的冲击配备，节约能源；各关节部位均用关节轴承联结，具备润滑装置不易磨损；自控制系统选用PLC编制控制器，操作人机界面显示，故障准确明确。

Shop assistant: Please check at the door.

店员：请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。