查询词典 cylindrical set

The potential functions of incident and scattered waves were expanded into Fourier-Bessel series, and the coefficients of scattering waves field were determined by imposing continuity conditions of stress and displacement at the soil-pile interfaces with the help of a set of cylindrical coordinate systems and in accordance with the Graff's addition theorem.

将倾斜入射波和散射坡的势函数展开成Fourier-Bessel函数的无穷级数的形式，利用一组圆柱坐标系统和Graff加法转换定理，通过施加桩土界面处的应力和位移连续的边界条件，求解出散射波势函数的待定系数，进而得到饱和土体中任意点的位移和应力。

The reference domain is assumed to be a bounded open set of R~N with boundary Γ of class C~2. We investigate in this paper the null controllability for the semilinear parabolic equations in non-cylindrical domains. The fixed point method is used in the proof.

本文讨论了定义在上述非柱形区域中的半线性抛物方程零能控性，我们使用的方法主要是通过同胚映射将非柱形区域中的抛物方程转化为柱形区域中的抛物方程，再利用不动点方法得到半线性抛物方程的有关结果。

The company mainly engaged in 4.8, 8.8, 10.9, 12.9, Metric, English, American, German system, the Japanese system, anti-teeth, small teeth, 1.6, with 1.6, nuts, bolts high-strength steel structures, steel structures Shear-twisting screws, nails welded steel structure; 10.9 high-strength steel structure screws; series since drilling screws, chemical screws, chemical fastening agents, advertising screws, Kenuo Di wallboard nails, Chunyu wallboard nails, screw the whole tooth , The top explosions,(stainless steel 2.60, within 1.6, nut, pull explosion, since the attack, machine wire, Ping-, bomb-) copper screws series; screws, a pin T-type screwdriver, screws live Festival , To pin screws, the head screws, cement Dan head screws, belts screws, tight set-key, cylindrical pin, a round nut, Kahuang, Spring, Pin, butterfly screws, orchid flower,扎head and dumping of deduction, 1.30 laps, furniture screws screws, construction fastening accessories (import drilling Tsui, 2.60 keys, twist drill, a round Banya) Gezhongfeibiao special screws.

本公司主要经营4.8级、8.8级、10.9级、12.9级、公制、英制、美制、德制、日制、反牙、细牙、外六角、内六角、螺母、高强度钢结构螺栓、钢结构扭剪形螺丝、钢结构焊钉；10.9级高强度钢结构螺丝；自钻螺丝系列、化学螺丝、化学紧固剂，广告螺丝、科诺迪墙板钉、春雨墙板钉、全牙丝杆、顶爆、（不锈钢六角、内六角、螺母、拉爆、自攻、机丝、平介、弹介）铜螺丝系列；拉钉、钢钉T型螺丝、活节螺丝、地脚螺丝、方头螺丝、水泥旦头螺丝、皮带螺丝、紧定、平键、圆柱销、圆螺母、卡簧、弹簧、销轴、蝶形螺丝、花兰、扎头、卸扣、三角圈、家具螺丝螺丝、建筑扣件配件系列；（进口钻咀、六角匙、麻花钻、圆板牙）等各种非标特殊螺丝。

The perfect boundary consistency conditions of total-scattered fields and the metho d to set TEM wave excitation source are proposed in 3-D cylindrical coordinates.

给出了柱坐标系下完整的总场-散射场区的连接边界条件以及平面波源的设置方法。

Moreover, they are not suitable for gears manufactured by different cutting tools. Based on gear generation principle, a new method to establish accurate 3D solid model of cylindrical gear by mechanism function of Pro/E is proposed. Taking the manufacture of spur-gear with pre-grinding hob as an example, this method is introduced in details and the accurate 3D solid model is set up.

以范成法加工齿轮的原理为理论基础，介绍在Pro/E平台下利用其机构模块的"轨迹曲线"功能精确构建各种刀具加工出来的渐开线圆柱齿轮齿廓曲线的方法，并以磨前滚刀加工直齿圆柱齿轮为例，详细介绍该方法的使用步骤，构建其精确的三维实体模型。

Finally, the general model of the ultra—high accuracy measurement about circular and cylindrical profiles parameters is set up.

本文通过对国内外圆和圆柱工件形状测量的研究现状和发展趋势进行了系统分析之后，围绕圆和圆柱轮廓的超精测量技术和特征分析理论做了如下工作。

Two problems were solved in numerical calculation, one was that a term of 1/r in Maxwell was divergence in cylindrical center where r=0, another was that the value of optical field at cylindrical center was difficult to decided when the cylindrical center set as a boundary condition in Maxwell equation, So the values of optical field need just calculate from cylindrical center to cylindrical boundary, comparing from cylindrical boundary to cylindrical boundary, near upon half CPU time and RAM saved.

计算中解决了在圆柱中心线上Maxwell方程存在发散项1/r以及用圆柱中心线作为边界条件时，中心线上光场值难确定的问题，因而光场只需从圆柱中心计算到圆柱边界，和以圆柱的两条边做为边界条件比较，节省了将近一半的计算时间和计算机存储空间。

The expressions of undifferentical side set change speed gear about machining cylindrical helical gear with spline miller are given as well as the expressions of side set change speed gear ratio.

文章给出了用花键铣床加工圆柱斜齿轮的无差动分齿挂轮公式，并用微分法推导了分齿挂轮比的计算允许误差要求的计算公式。

Set water activities such as: floating bridge, cylindrical bridge, wood cylindrical bridge, steel wire bridge, etc.

设计浮桥、滚筒桥、木筒桥、钢丝桥等，开展水滑梯、碰碰船，布置溜索、独木桥等水上游艺活动。

The present invention relates to a kind of tunable plasma resonant cavity for PCVD optical fiber perform rod processing machine. The tunable plasma resonant cavity includes cylindrical resonant cavity casing and cut-off waveguides set on two ends of the casing, and features the tuning piston, which is set on one end of the cylindrical resonant cavity and has middle part with through hole and back end stretched beyond the casing.

本发明涉及一种用于PCVD光纤预制棒加工机床的可调谐等离子体谐振腔，包括有圆柱型谐振腔壳体，在圆柱型谐振腔壳体的两端设置截止波导，其不同之处在于在圆柱型谐振腔腔体的一端安设调谐活塞，调谐活塞的中部开设通孔，后端延伸至圆柱型谐振腔壳体外端。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。