螺旋形的

A typical 3-RPS parallel platform manipulator mechanism is firstly studied by means of the above theory. The principal screws of this mechanism under three different configurations are identified by means of the conic section and the quadric degenerating theory, respectively.

以上述理论为武器首先分析典型的3-RPS并联平台机构，分别应用二次曲线分解理论和二次曲面分解理论，识别了该机构在三种位形下的主螺旋。

Touch of flair and variety to everyday meals and to rediscover the daily pleasures of conviviality and old-fashioned fun.

它们有：令人心情欢愉的迷你蝴蝶形意面、迷你螺旋形意面、最受欢迎的迷你两头尖直花形

The leaf is large, intimate circle, part is born cauline top, palm state divides mid, lobation is linear wrap around needle form, gradually pointed, topmost 2 crack, two side provide petiole dentate spinule, halberd dash forward apparent, spadix armpit is unripe, bigger, individual plant of different of male and female, female flower is big, globose, helix shape is worn be born on spicule axis; Male flower is small, yellow, move unripe Yu Xiaobao piece in sunken acupuncture point, fructification is close globose, diametical 10-20 centimeter, black Brown, exocarp is smooth, mesocarp is thicker, fiber is qualitative, endocarp is by 1-3 hard osseous divides pit composition.

叶大型，近圆形，集生茎顶，掌状分裂到中部，裂片线状披针形，渐尖，顶端2裂，叶柄两侧具齿状小刺，戟突明显，肉穗花序腋生，较大，雌雄异株，雌花大，球形，螺旋状着生于小穗轴上；雄花小，黄色，着生于小苞片的凹穴里，果实近球形，直径10-20厘米，黑褐色，外果皮光滑，中果皮较厚，纤维质，内果皮则是由1-3枚硬骨质的分果核组成。

Seed horizontal or vertical, lenticular, reniform, ovoid, or globose; testa thinly leathery or membranous; embryo green or whitish, planospiral, slender; perisperm scant or absent.

种子水平或垂直位置，透镜状，肾形，卵球形，或球状；种皮薄革质或者膜；胚绿色的或带白色，平面螺旋状，纤细；外胚乳不够的或无。

LSS series are designed as shaftless structure. The U-shaped solid tank is hermetic with an lid (which can be opened when necessary).

LSS系列螺旋输送机被设计成无轴的，U形输送槽是封闭的且上盖可以打开。

8T ball mill has new constructure inner liner with transiting round corner and uncontinuous spiral which is built by alumina corundum-based heteromorphic brick and common ceramic tiles.

8吨球磨机应用氧化铝刚玉质异形砖与普通瓷质砖砌筑成具有过渡圆角及不连续螺旋的新结构内衬，在广东某大型企业的生产线上球磨陶瓷耐磨地砖釉料，并就釉料颗粒大小及粒度分布、电耗、介质磨耗等与1.5吨球磨机进行对比，进行了实验研究。

This paper analyze the principle of the joggling in the cold rolling process for involute spline manufacturing and establishes the CAD model of the roller based on the principle of equal pitch helicoids.

本文通过对渐开线花键滚轧时啮合原理的分析，按照等升距螺旋面的形成理论建立了滚轧轮廓形设计模型。

Spur straight, upcurved, or recurved to 180°, neither U-shaped nor spirally curved.

直的距，上弯，或下弯兑180°，既非U形也不螺旋弄弯。

Under such singularity, the linear dependency of joint screws is analyzed using Grassmann line geometry method.

针对机构的奇异位形，利用Grassmann线几何原理分析了机器人关节轴线螺旋的线性相关性。

Being associated with three research projects, this dissertation makes deeply insight into the fast and accurate analysis, optimal design and manufacture of HF and VHF/UHF broadband omnidirectional miniature loaded wire antennas, loaded helical antennas and multiple-tuned VLF inverted L valley span antennas.

本文密切结合&十五&国防预研项目&软件无线电天线&和&宽带小型化天线&以及国防重点项目&某长波台发信天线电气参数分析与设计&等项目，研究了短波和超短波频段上的宽频带加载线天线、加载螺旋天线和超长波倒L形多路调谐山谷天线的快速精确分析、优化设计以及样机制作。

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