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螺旋角

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Hexagonal nano-silicon carbide thin films doped and undoped with phosphorus which possess a characteristic of the ultraviolet photoluminescence have been deposited by helicon wave plasma enhanced chemical vapour deposition technique under the high hydrogen condition in this work. The optical and electric properties of the doped nano-SiC films together with the electric and photovoltage properties of the n-p nc-SiC/Si heterojunction is studied and analyzed.

本工作利用螺旋波等离子体化学气相沉积技术在高氢气条件下制备了具有紫外发光的六角晶型纳米碳化硅,对这种材料进行了不同比例的磷掺杂,并对这种掺杂的纳米碳化硅的光学、电学特性以及nc-SiC/Si异质结的电学特性和光电压特性进行了研究。

The main products are: manganese steel mesh, comb plate, polyurethane sieve, paper net, helical net, fiber network, sinter net, vapor-liquid filters, wire mesh demister, coal washing net Dust cloth, cotton air filters, industrial filter cloth, non-woven filter cloth, sewing, stainless steel mesh, sieve basket, sieve cones, arc screen, conveyor belt net, turtle nets, I-type network, Micronesia stria network, titanium mesh, nickel net, black wire cloth, MAG anti-theft network, Tap filter, blade gill-netting, barbed wire, construction mesh, welded wire mesh, square wire mesh, stainless steel wire mesh, brass net, hexagonal , steel plate net, aluminum-magnesium alloy window screening, galvanized, paint window screening, plastic window screening.

主要产品有:锰钢筛网,梳齿筛板,聚氨脂筛板{网},造纸网,螺旋网,化纤网,烧结网,汽液过滤网,丝网除沫器,洗煤网,除尘布,空气过滤棉,工业过滤布{袋},无纺过滤布{袋},不锈钢条缝筛网,筛篮,圆筒筛,弧型筛,输送带网,龟甲网,席型网,密纹网,钛网,镍网,黑丝布,美格防盗网,踏尘网,刀片刺网,刺绳,建筑网片,电焊网,方眼网,不锈钢丝网,黄铜网,六角网,钢板网,铝镁合金窗纱,镀锌、烤漆窗纱,塑料窗纱。

As a result,the tooth profile equations, helix angle equations,limit curve equations and induced normal curvature equations for worm and internal gear are obtained.

介绍了一种新型的传动机构超环面行星蜗杆传动,运用啮合理论的包络法建立了这种传动中行星轮与蜗杆、行星轮与内齿轮啮合的基本方程,进而得到了蜗杆和内齿轮的齿面方程、螺旋升角方程、界限曲线方程及诱导法曲率方程等。

By applying the optimal tool parameters, the maximum tooth contact pressure is reduced by 45% and the maximum angular position error of the driven gear by 60%, in regard to the spiral bevel gear pair with a pinion manufactured by a cutter of straight-sided prole and of diameter determined by the commonly used methods.

通过应用参数的最佳工具,最大齿接触压力减少了45%,而最高的从动齿轮角位置误差60%,在关于由一个螺旋直齿轮刀具制造了一对锥齿轮双面形象和所常用的方法确定的直径。

[Objective]To evaluate the effect of transepicondylar axis of different position on volume rendering technique measuring the humeral head retroversion angle with multi slice spiral CT.

探讨肱骨远端不同位置内外上髁轴线对多层螺旋CT容积再现三维重建测量肱骨头扭转角的影响。

Our main products are various specifications for small and medium-sized two-roll, four roll-precision rolling mill, spiral round air duct air duct molding machines and other equipment, as well as slitting machine, shearing machine, hydraulic shear plane angle, such as sheet metal machinery.

公司主要产品有各种规格的中小型二辊、四辊精密轧机,螺旋圆风管机等风管成型设备,以及纵剪机、剪板机,液压剪角机等板金机械。

Above result revealed that multidirectional closed die forging of spiral bevel gear was feasible.

揭示了使用复动闭式模锻模具成形小锥角螺旋伞齿轮的可行性。

According to customers requirement, we can lathe all kinds groove on the rubber surface . groove line such as rhombus squareness herringbone linearly ,cycle spirality and so on . also the specification can make to measure such as angle of pitch、quantities of lines、deepth and width of groove.

英强公司制造的槽纹橡胶辊,可根据用户要求在胶辊表面加工各种的槽纹(如菱形、方形、人字形、直线形、环形、螺旋形等),规格(螺距角、分头数量、槽深、槽宽等)可根据要求定制。

Either of two large African antelopes of the genus Taurotragus having short spirally twisted horns in both sexes .

羚羊属的两种大型非洲羚羊之一,雄性和雌性都有短而螺旋弯曲的角。

Five species belonged to five genera were extracted from soil samples which were Helicotylenchus digonicus, Tylenchorhynchus maximus, Psilenchus hilarulus, Filenchus vulgaris and Aphelenchus avenae. Except A.

结果表明:从洋葱根际土壤样品中共分离鉴定出线虫5个属5个种,包括喜悦平滑垫刃线虫、普通丝尾垫刃线虫、双角螺旋线虫、最大矮化线虫和燕麦真滑刃线虫。

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As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。