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1·They were all treated with straight wire appliance and helical spring to expand clearance.

均采用直丝弓矫治器矫治，应用螺旋推簧扩展间隙及上颌前方牵引。

2·The characteristics method of the dynamic response of the helical spring mass systems is studied.

本文对螺旋弹簧质量系统动态响应的特征线法进行了研究。

3·W is attached to a bar, movable vertically around an axis a and suspended by the helical spring F.

摆锤W装在一根杆上，在轴a周围垂直移动，它由螺旋弹簧f所悬挂。

4·The nonlinear theory of cylindrical helical spring is verified by the accurate measurement of one.

并通过对圆柱螺旋弹簧的精确测量，验证了圆柱螺旋弹簧非线性理论的正确性。

5·Classic theory of conical helical spring is revised, and the analytic formula of nonlinear theory is derived.

提出一种计入弹簧大变形的影响的等升角圆锥螺旋弹簧非线性的螺旋弹簧理论。

6·It includes driving shaft, helical spring, key way on the driving shaft, block, front stop unit, back stop unit, etc.

传动 轴、螺旋弹簧、传动轴上的键槽、滑块、前限位和后限位等部分。

7·In this paper the dynamic response of helical spring subjected to reciprocating displacement is analysed theoretically.

本文对园柱形螺旋弹簧在交变位移作用下的动力响应进行了理论分析。

8·It is concluded with the application method of helical spring parameters and the simulation method of high frequency response of suspension in wave theory.

提出了在波动理论下螺旋弹簧多参数的应用方法及悬架高频响应的模拟方法。

9·Helical spring mass system (HSMS) is widely used in almost all of mechanical and electrical products due to its structure feature and elastic buffer ability.

螺旋弹簧质量系统由于其结构特点及其缓冲作用在几乎所有机电设备和系统中都有广泛的应用。

10·Having considered the main characteristics of stranded wire helical spring machining tool, a novel NC system is proposed to control the precise forming process.

针对多股螺旋弹簧加工的主要特点，采用数控系统进行精密加工成型控制。