螺旋轴

This paper studied 4-axis CNC spiral bevel gear machine movement rules, and set up machine machining coordinates.

摘要研究了四轴数控螺旋锥齿轮铣齿机的运动规律，建立了铣齿机加工坐标系。

Multiplanar resonstruction and virtual endoscopy are good complemental methods of axial CT.

螺旋CT多平面成像和仿真内镜成像是对轴位CT的重要补充，具有一定的应用潜力，值得临床上进一步推广应用。

The method is right 34 aorta interlining patient goes scanning of layer of 64 helix CT, the biggest density is used in workstation umbriferous , much plane rebuilds and cubage emersion technology countershaft resembles undertaking three-dimensional rebuild.

方法对34例主动脉夹层患者行64层螺旋CT薄层扫描，在工作站采用最大密度投影、多平面重建及容积再现技术对轴位图像进行三维重建。

Powder metallurgy gears include: bevel gear, dual-gear, gear box gears, planetary gears, ring gear, rack, sector gears, bevel gears, spur gears, sun gear, helical gear, gear shaft, flat gears, spur gears, double layer gear, synchronous pulley, helical gear, sprocket, ratchet, multi-gears, micro-gear, small modulus gear, special gear, differential bevel gear, reducer gears, variable speed gear motor, all kinds of precision gears.

粉末冶金齿轮包括：伞齿轮、双联齿轮、齿轮箱齿轮、行星齿轮、齿圈、齿条、扇形齿轮、锥齿轮、直齿轮、太阳齿轮、斜齿轮、齿轴、平齿轮、正齿轮、双层齿轮、同步轮、皮带轮、螺旋齿轮、链轮、棘轮、多层齿轮、微型齿轮、小模数齿轮、异形齿轮、差速伞齿轮、减速机齿轮、变速电机齿轮、各类精密传动齿轮。

The work piece revolve with stalk to enter give, work piece of spiral sport, revolve of emery wheel, the enter of emery wheel give etc.

工件的旋转与轴向进给，工件的螺旋运动，砂轮架的旋转，砂轮的进给等关联运动能在伺服系统的控制下作插补运动实现。

Based on the problems with current expeller , this paper elaborates the new thoughts of developing ex-peller, including new method of worm assembly design, development and application of new materials and press control systems.

针对目前螺旋榨油机存在的问题，全面阐述了榨油机开发的新思路，包括榨螺轴部件设计的新方法、新材料的开发与应用、榨油机的控制系统的开发与应用等。

The fibril of cellulose macromolecules form spirals along the fiber axis.

纤维素大分子的微纤沿着纤维的轴向以一定的角度形成螺旋。

To evaluate the bioactivity of the glass-ceramics,the specimens were soaked in the simulated body fluid. The results indicate that fluorapatite shows needle-like microstructure, which is similar to that in human bone and teeth. The formation of needle-like fluorapatite is related to the heat treatment procedure, which results in needle-like fluorapatite crystals by accelerating one-dimension growth along the c-axis through the screw dislocation growth mechanism. The mechanical properties of the glass-ceramics are close to those of the human bone and teeth. The bioactivity test results show that apatite layer is precipitated on the materials surface after 3 d immersion in SBF, which indicates the glass-ceramics have a good bioactivity.

研究结果表明：氟磷灰石相呈针状，与人体骨和牙齿的磷灰石形貌相似，有利于提高材料的生物活性和生物相容性；氟磷灰石的形成是材料被迅速加热至高温进行热处理，使磷灰石以螺旋位错生长机制沿c轴晶化长大所致；经热处理获得的材料具有优良的力学性能，基本满足骨科和齿科用生物材料的性能要求；材料在体外模拟体液中浸泡3 d后，样品表面已有磷灰石层生成，表明该材料具有较高的生物活性。

A set of curved lawn-mower blades that rotate around a bar parallel to the ground, cutting grass while moving against a stationary straight blade.

螺旋状刈草刀：弯曲的刈草机上沿与地面平行的轴旋转的刀，在切草的同时围绕一支静止的竖刀旋转 v.tr。

The boardening of the spectral line in the spectrum when the helix stucture is perpendicular to the atomic be...

观察了螺旋线慢波结构轴与原子束垂直放置时波谱中谱线的增宽，并进行了讨论。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。