用途：适用于水路管道控制，通过螺旋副运动完成启闭动作。
Usage: It's applicable to water pipes for water running, It opens and closes through screws parts turning.
螺旋传动是依靠内、外螺纹组成的螺旋副来传递运动和动力。
Spiral spread to move is depend on inside, outside the thread constitute of spiral pair to deliver sport and motive.
液压千斤顶又称机械式千斤顶，是由人力通过螺旋副传动，螺杆或螺母套筒作为顶举件。
The hoisting jack calls the mechanical hoisting jack, is by the manpower through the screw vice-transmission, the screw rod or the nut sleeve achievement goes against lifts.
本发明提供一种结构简单、传动精度高、故障率低的双螺旋副整排看台座椅自动翻放装置。
The invention provides an automatic double helix turning and setting device of side row stand seat with the advantages of simple structure, high transmission accuracy, and low failure rate.
举例子，任何含有螺旋副的连杆机构，由于它的相对运动是螺旋线形的，因此是空间的机构。
Any linkage which contains a screw pair, for example, is a spatial mechanism, since the relative motion within a screw pair is helical.
新型钎杆采用螺旋副连接柱面承载结构和薄壁管式结构，具有能量传递效率高抗疲劳寿命性能好等特点。
The proposed rod adopts a structure of screw-pair jointing, load-bearing cylinder and thin-wall tube, and is characteristic of high energy transfer efficiency and good anti-fatigue life.
研究并推导出了克林·贝格螺旋锥齿轮副重迭系数的计算方法。
The calculation method about the overlap coefficient of Klingelnberg spiral bevel gear system is studied and derived.
根据干涉结果对螺旋锥齿轮的切齿参数进行调节，直至得到比较满意的螺旋锥齿轮副。
According to the result of interference test, the cutting tooth parameter is adjusted till the satisfied spiral bevel gear pair was acquired.
螺旋锥齿轮副的成形法大轮，利用合适的成形铣刀，在通用的立式加工中心上，可以实现热处理后硬齿面的高速铣削。
For spiral bevel gears' formate gear, using proper figurate cutting tool and generic CNC machining center, the gear's hard tooth-surface can be milled with high speed.
在分析克林·贝格螺旋锥齿轮切齿原理和基本运动的基础上，以一对齿轮副参数为例进行建模。
Based on an analysis of gear cutting principle and basic motion of klingelnberg spiral bevel gear, the modeling is carried out by taking parameters of a gear pair as example.
材料与方法：对80例颅脑CT扫描结果阴性的头痛患者增加副鼻窦螺旋CT扫描，并作模拟内窥镜。
Materials and Methods: 80 headache cases with negative CT result were applied paranasal sinus spiral CT and virtual endoscopy.
目的：利用螺旋ct多平面重组技术探讨副鼻窦轴位扫描能否代替直接冠状位扫描。
Objective: to study the usefulness of ct MPR in diagnosis of paranasal sinuses diseases, and to discuss whether the ct MPR can replace the direct coronal scanning.
通过几个实例对此原因进行了比较深入的剖析，在此基础上，提出了一种基于旋量理论的消极运动副的判定方法，该方法无需计算运动螺旋的具体数值。
This reason was analyzed through several examples. An identification method of inactive joints based on screw theory was given. It is unnecessary to calculate Jacobian matrixes in this method.
在丝杠螺旋线误差测量原理的基础上，分析用手动三坐标测量机测量丝杠副螺旋线误差存在的问题。
Based on the measuring principle of the screw bar helix error, the problems of measuring the screw bar helix error by using manual 3d measuring machine are analyzed.
在丝杠螺旋线误差测量原理的基础上，分析用手动三坐标测量机测量丝杠副螺旋线误差存在的问题。
Based on the measuring principle of the screw bar helix error, the problems of measuring the screw bar helix error by using manual 3d measuring machine are analyzed.
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