1. Firstly, this paper researched the forming mechanism of the helicoidal surface.
对螺旋面的成形机理进行了分析。
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2. The helicoidal surfaces are produced mostly by form cutting with forming cutters of end mill type, side mill type or disc type.
螺旋面大多数是用球头铣刀、侧铣刀、盘形刀具成形加工出来的。
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3. Except that the selected sliding surface is formed by logarithmic helicoidal surface-logarithmic helicoidal surface-plane, no other simplifications or assumptions are made.
除选定滑动面为对数螺旋面—对数螺旋面—平面的形式外，没有其他任何的简化或假定。
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4. The common conjugate surface includes tooth surface of gear, working surface of solid CAM, helicoidal surfaces existing in spiral burr, worm, chip flute of cutters, and so on.
5. To simplified the designing, diagram presentation, construction and profile of helicoidal stair, the formation of helicoid is analyzed, and it's mathematical model is studied.
为简化旋转楼梯的设计、图示、施工及剖面形状，对螺旋面的形成进行了分析，建立了螺旋面的数学模型。
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6. The utility model discloses a rechargeable lamp, including a cylindrical lamp holder, a helicoidal socket, a holder motherboard, a conduction metal sheet and a storage battery.
本实用新型公开了一种能充电的电灯，由圆筒灯座、螺圈灯口、灯座底板、导电金属片和蓄电池组成。
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7. The utility model discloses a rechargeable lamp, including a cylindrical lamp holder, a helicoidal socket, a holder motherboard, a conduction metal sheet and a storage battery.
