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形状的牙齿是一个渐开线。The shape of the tooth is an involute helicoid.

齿的形状是一溅开线螺旋面。The shape of the tooth is an involute helicoid.

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最后，以螺旋曲面薄壳为例，导出了性质矩阵的形式。Next, taking helicoid shell as an example, the behaviour matrix of it is deduced.

那表面获得当每一点在那之上边缘产生一纷乱的是呼叫一纷乱的螺旋状的。The surface obtained when every point on the edge generates an involute is called an involute helicoid.

最后还以生产中用得最多的渐开线蜗杆为例说明该通用程序的使用。Finally, the profile and the curvature of tools for producing the worm of the involute helicoid are discussed.

梅毒是一种由于梅毒苍白螺旋体感染后所发生的性病。Syphilis is a kind of place after because syphilis is cadaverous, helicoid is affected those who happen is venereal.

本文提出了变距螺旋面的“生成法”，导出了变距螺旋面的普遍方程。The forming method for variable-pitch helicoid is presented and the general expressions for the helicoid are derived.

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先天梅毒又称胎传梅毒，乃梅毒螺旋体经胎盘传染给胎儿之梅毒。Congenital syphilis says the embryo passes syphilis again, it is syphilis helicoid to infect fetal syphilis via placenta.

传染性出血黄疸是由出血性黄疸钩端螺旋体引起的，主要侵犯幼犬。The infection bleeds Huang Dan is the end helicoid causes by hemorrhagic Huang Dangou, mainly encroaches upon the young dog.

传染性出血黄疸是由出血性黄疸钩端螺旋体引起的，主要侵犯幼犬。The infection bleeds huang dan is the end helicoid causes by hemorrhagic huang dangou mainly encroach es upon the young dog.

早期先天性梅毒，可以通过皮肤或粘膜损害处刮片发现梅毒苍白螺旋体。Inchoate congenital syphilis, can blow a discovery through the skin or harm of mucous membrane caustic syphilis is cadaverous helicoid.

介绍了用图形模拟技术校核前刀面磨削干涉的方法。The technology of graphics simulation is introduced to check the grinding interference of the helicoid face of cylindrical milling cutters.

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文中还求出了滚刀螺旋面的投影方程式，并与媒介齿条法面齿廓方程做了比较。In this paper, the equation of the projection of hob helicoid has also been deduced and the projection is compared with the basic rack nomal profile.

本文利用螺旋面理论。结合计算几何知识，根据-麻花钻实物求出了加工该工件用的二次圆盘刀具截形。On the basis of helicoid theory and computational geometry, the sectional contours of a sample twist drill were found for producing similar twis1t drills.

具有适当半径和中心角的圆环扇形可取为不可展正螺旋面一个导程的曲面的近似展开图。A circular ring sector with appropriate radii and central angle may be taken as approximate developing pattern of a coil of an undevelopable right helicoid.

针对大模数少齿数螺旋齿轮的加工特点，结合渐开线和摆线的性质，利用微分几何工具计算出该类曲面的法矢，作为选取球头铣刀半径的依据。As it is impossible to machine the helicoid gear surface with large module and a few teeth by gear generating, a four-axis milling was developed in this paper.

本文介绍由斜螺旋面和单叶双曲面组成的犁面在犁面主参数确定后的工程作图法。It's introduced in this paper how to draw the engineering drawing of the plow surface formed by a combination of a oblique helicoid and a hyperboloid of one sheet.

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针对不锈钢螺旋板的左旋螺旋面结构特点，分析了成形工艺，并介绍了成形模具结构。According the laevorotatory helicoid structure characteristic of the stainless steel spiral plate, analyzed the forming process, and introduced forming die structure.

基于螺旋线数控铣削的螺旋曲面粗加工的方法可大大提高加工效率，减少刀具磨损，降低加工成本。This article introduces a means of NC program about rough cut of helicoid base on helix-milling. The means can improve efficiency of cutting, reduce the cutting abrasion, depress the operating costs.