无螺纹的

This study analyzes the role of capsulotomy with evacuation of intraarticular fluid and gentle reduction done as an emergency procedure followed by fixation with unthreaded Kirschner wires.

本研究分析了关节囊切开术联合关节液排出术以及采用无螺纹基尔希纳氏钢丝固定后的逐渐复位术作为一项应急措施对不稳定性股骨头骨骺脱位的作用。

Number of loaded circuits DN Value Preload Method for Providing a Preload Type of guide 3 row 2.50 turns 70000 None None Ball Shaft process method Ball cage Splined portion Hollow shaft Recommended support unit on the Fixed Side type Precision None None None None Recommended support unit on the Supported Side type Types of Nuts Threading direction Spacer ball Rigidity in the axial direction None Single nut Right-hand, left-handmust be chec...

载荷钢球圈列数 DN值预压预压方法导轨型号 3列 2.50圈 70000 无无滚珠丝杠轴加工方式球保持器轴的花键部分中空轴轴承支撑座固定侧的推荐方式精密无无无无轴承支撑座支撑侧的推荐方式螺母种类螺纹方向间隔钢球轴方向刚性无单一螺帽右螺纹，左螺纹，左右螺纹无 2520.0 螺纹条数防尘措施。。。

Number of loaded circuits DN Value Preload Method for Providing a Preload Type of guide 2 row 2.50 turns 70000 None None Ball Shaft process method Ball cage Splined portion Hollow shaft Recommended support unit on the Fixed Side type Precision None None None None Recommended support unit on the Supported Side type Types of Nuts Threading direction Spacer ball Rigidity in the axial direction None Single nut Right-hand, left-handmust be chec...

载荷钢球圈列数 DN值预压预压方法导轨型号 1row 2.50圈 70000 无无滚珠丝杠轴加工方式球保持器轴的花键部分中空轴轴承支撑座固定侧的推荐方式精密无无无无轴承支撑座支撑侧的推荐方式螺母种类螺纹方向间隔钢球轴方向刚性无单一螺帽右螺纹，左螺纹，左右螺纹无 890.0 螺纹条数防尘措施。。。

Number of loaded circuits DN Value Preload Method for Providing a Preload Type of guide 4 rows 1.50 turns 70000 None None Ball Shaft process method Ball cage Splined portion Hollow shaft Recommended support unit on the Fixed Side type Precision None None None BK30,FK30 Recommended support unit on the Supported Side type Types of Nuts Threading direction Spacer ball Rigidity in the axial direction BF30, FF30 Single nut Right-hand, left-hand...

载荷钢球圈列数 DN值预压预压方法导轨型号 2列 1.50圈 70000 无无滚珠丝杠轴加工方式球保持器轴的花键部分中空轴轴承支撑座固定侧的推荐方式精密无无无 BK30，FK30 轴承支撑座支撑侧的推荐方式螺母种类螺纹方向间隔钢球轴方向刚性 BF30， FF30 单一螺帽右螺纹，左螺纹，左右螺纹无 400.0 螺纹条数。。。

Number of loaded circuits DN Value Preload Method for Providing a Preload Type of guide 3 row 1.50 turns 70000 None None Ball Shaft process method Ball cage Splined portion Hollow shaft Recommended support unit on the Fixed Side type Precision None None None BK30,FK30 Recommended support unit on the Supported Side type Types of Nuts Threading direction Spacer ball Rigidity in the axial direction BF30, FF30 Single nut Right-hand, left-handm...

载荷钢球圈列数 DN值预压预压方法导轨型号 3列 1.50圈 70000 无无滚珠丝杠轴加工方式球保持器轴的花键部分中空轴轴承支撑座固定侧的推荐方式精密无无无 BK30，FK30 轴承支撑座支撑侧的推荐方式螺母种类螺纹方向间隔钢球轴方向刚性 BF30， FF30 单一螺帽右螺纹，左螺纹，左右螺纹无 600.0 螺纹条数。。。

Lead Ph Basic load rating Permissible load F P Nut mass Shaft mass Dynamic rating Ca Static rating C 0 a mm kN kN kN kg kg/m 5 23.7 84.7 1.69 9.06 Type using standard material Standard grease Standard seal Iron-based AFB-LF RR Dimensions of the Ball Screw Nut Attached with Wiper Ring W and QZ Lubricator WW avail- ability QZ avail- ability Dimensions including WW L Length of protrusion with QZ attached QWL Outer diameer of protru- sion with QZ att...

载荷钢球圈列数 DN值预压预压方法导轨型号 2列 1.50圈 70000 无无滚珠丝杠轴加工方式球保持器轴的花键部分中空轴轴承支撑座固定侧的推荐方式精密无无无 BK30，FK30 轴承支撑座支撑侧的推荐方式螺母种类螺纹方向间隔钢球轴方向刚性 BF30， FF30 单一螺帽右螺纹，左螺纹，左右螺纹无 400.0 螺纹条数。。。

Lead Ph Basic load rating Permissible load F P Nut mass Shaft mass Dynamic rating Ca Static rating C 0 a mm kN kN kN kg kg/m 20 90.1 294 12.68 35.81 Type using standard material Standard grease Standard seal Iron-based AFB-LF RR Dimensions of the Ball Screw Nut Attached with Wiper Ring W and QZ Lubricator WW avail- ability QZ avail- ability Dimensions including WW L Length of protrusion with QZ attached QWL Outer diameer of protru- sion with QZ a...

载荷钢球圈列数 DN值预压预压方法导轨型号 3列 2.50圈 70000 无无滚珠丝杠轴加工方式球保持器轴的花键部分中空轴轴承支撑座固定侧的推荐方式精密无无无无轴承支撑座支撑侧的推荐方式螺母种类螺纹方向间隔钢球轴方向刚性无单一螺帽右螺纹，左螺纹，左右螺纹无 1860.0 螺纹条数防尘措施。。。

Lead Ph Basic load rating Permissible load F P Nut mass Shaft mass Dynamic rating Ca Static rating C 0 a mm kN kN kN kg kg/m 20 163.7 589 17.12 35.81 Type using standard material Standard grease Standard seal Iron-based AFB-LF RR Dimensions of the Ball Screw Nut Attached with Wiper Ring W and QZ Lubricator WW avail- ability QZ avail- ability Dimensions including WW L Length of protrusion with QZ attached QWL Outer diameer of protru- sion with QZ...

载荷钢球圈列数 DN值预压预压方法导轨型号 2列 2.50圈 70000 无无滚珠丝杠轴加工方式球保持器轴的花键部分中空轴轴承支撑座固定侧的推荐方式精密无无无无轴承支撑座支撑侧的推荐方式螺母种类螺纹方向间隔钢球轴方向刚性无单一螺帽右螺纹，左螺纹，左右螺纹无 1720.0 螺纹条数防尘措施。。。

Lead Ph Basic load rating Permissible load F P Nut mass Shaft mass Dynamic rating Ca Static rating C 0 a mm kN kN kN kg kg/m 20 253.8 1105.4 30.12 57.13 Type using standard material Standard grease Standard seal Iron-based AFB-LF RR Dimensions of the Ball Screw Nut Attached with Wiper Ring W and QZ Lubricator WW avail- ability QZ avail- ability Dimensions including WW L Length of protrusion with QZ attached QWL Outer diameer of protru- sion with...

载荷钢球圈列数 DN值预压预压方法导轨型号 2列 2.50圈 70000 无无滚珠丝杠轴加工方式球保持器轴的花键部分中空轴轴承支撑座固定侧的推荐方式精密无无无无轴承支撑座支撑侧的推荐方式螺母种类螺纹方向间隔钢球轴方向刚性无单一螺帽右螺纹，左螺纹，左右螺纹无 4080.0 螺纹条数防尘措施。。。

Lead Ph Basic load rating Permissible load F P Nut mass Shaft mass Dynamic rating Ca Static rating C 0 a mm kN kN kN kg kg/m 10 27.6 63.3 2.75 6.51 Type using standard material Standard grease Standard seal Iron-based AFB-LF RR Dimensions of the Ball Screw Nut Attached with Wiper Ring W and QZ Lubricator WW avail- ability QZ avail- ability Dimensions including WW L Length of protrusion with QZ attached QWL Outer diameer of protru- sion with QZ at...

载荷钢球圈列数 DN值预压预压方法导轨型号 2列 2.50圈 70000 无无滚珠丝杠轴加工方式球保持器轴的花键部分中空轴轴承支撑座固定侧的推荐方式精密无无无 BK25，FK25 轴承支撑座支撑侧的推荐方式螺母种类螺纹方向间隔钢球轴方向刚性 BF25， FF25 单一螺帽右螺纹，左螺纹，左右螺纹无 680.0 螺纹条数。。。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐