查询词典 asymptotic curve

Based on the universal design formula for blade curve of isopitch of gyre milling cutter,the continuous isopitch blade curve of spherical cutter with protruding arc is deduced.

给出了回转铣刀上等螺距刃口曲线设计的通用公式，进而应用通用公式推出凸弧的球头铣刀上连续的等螺距刃口曲

Four main types of spatial binary links are investigated in details for kinematic synthesis both in precision-position synthesis and multi-position synthesis. In terms of the invariants of spherical curve and cylindrical curve, the mathematical models of adaptive fitting sphere and cylinder are constructed by means of the saddle-point programming.

再次，根据常见空间机构运动副组合的约束曲线与约束曲面的曲率理论，阐述了空间机构运动综合的基本要素及其不变量拟合理论与方法，研究了有限位置和多位置情况下，自适应综合方法在空间S-S、C-S、C-C和S-C四类二副杆组运动综合中的应用，实现了自适应综合方法从平面到空间的扩展。

Based on the universal design formula for blade curve of isopitch on gyre milling cutter,the continuous isopitch blade curve on spherical cutter with protruding arc is deduced.

给出了回转铣刀上等螺距刃口曲线设计的通用公式，进而应用通用公式推出凸弧的球头铣刀上连续的等螺距刃口曲线。

Spherical four bar mechanism ; Cusped coupler curve ; Spherical Burmester curve ; Instantaneous center

Keywords：球面四杆机构；尖点耦杆曲线；球面布氏曲线；瞬心

According to road designing data of mileage,coordinate,azimuth angle of tangent or straight line,curve radius,the length of spiral line from main point of curve or straight line starting point,we can calculate the coordinates of center line points and boundary line point s in any form of road under the same coordinate system.

根据线路设计资料提供的曲线主点里程、坐标、切线方位角、曲线半径、缓和曲线长度的已知数据，计算出任意线形的中桩、边桩在线路统一坐标系中的坐标，利用全站仪极坐标放样程序，以线路附近的控制点或加密点为测站，准确、快速放样各点。

In the aspect of the study of the application of HHT method, This dissertation has done three part of jobs: first, the Elcentro strong ground motion which is in common use in earhtquake engineering is analyzed by HHT method, getting its amplitude-frequency-time distribution and the comparison between the HHT marginal spectrum and Fourier spectrum is also made; second, the typical nonlinear system defined by the Duffing equation is analyzed by HHT method, getting its numerical value's amplitude-frequency-time distribution and the comparison between the HHT marginal spectrum and Fourier spectrum is also made; third, define the stationary degree of non-stationary signals making use of 3-D time-frequency spectrum and marginal spectrum, the stationary degree curve of Elcentro seismic recording is protracted according to its defining formula, the stationary degree curve of Elcentro seismic recording which change with time is protracted according to similiar definition.

在HHT方法的应用研究方面，本文做了三部分的工作：首先，利用HHT方法分析了地震工程中常用的Elcentro非平稳强震记录，得到了该记录的振幅－频率－时间分布特性，并将得到的边际谱与傅立叶谱做了比较；其次，应用HHT方法分析了典型的非线性系统－Duffing方程，得到了该方程数值解的振幅－频率－时间分布特性，并将得到的边际谱与傅立叶谱做了比较；最后，利用三维时频谱与边际谱定义了非平稳信号的平稳度，并依照其定义式绘制了Elcentro地震波记录的平稳度曲线，依照类似与依赖与频率变化的平稳度定义，初步尝试编程绘制了Elcentro地震波随时间变化的平稳度曲线。

After the introduction of brand into economics, the elevation of brand credit changes the demand curve. On the one hand the elevation of brand credit will decrease the choice cost of consumers effectively if other conditions remain unchanging. Consumers' nature of hastening for benefits and avoiding harm makes the demand increase at any price. On the other hand the elevation of brand credit will reduce merchandise demand elasticity and steepen the demand curve.

把品牌引入经济学后，品牌信用度的提高使得需求曲线发生变化，一方面在其他条件不变的情况下，品牌信用度的提高将有效地降低消费者的选择成本，消费者"趋利避害"的本性使得在任意价格下需求量增加，需求曲线右移；另一方面品牌信用度的提高使得品牌商品的需求弹性变小，需求曲线变陡峭。

To get straight to the subject, and to make a long story short, technically speaking, I can't step on the brake when I am in the curve and when I see that there is a time loss in the middle of the curve, I want to step on the gas all the way and the traction control can't keep up with it.

直接进入主题吧，把冗长的事情弄得短点，专业的说，在进弯时我无法刹车，当我看到在弯心中损失的时间时，我一直想要加油但是牵引力控制却跟不上。

The study of the mineralogy indicates:(1)Few impurity and poor sulfur in thestibnite of Shalagang antimony.(2)From the stibnite's cell parameter, it finds that thecell parameter of Shalagang antimony's stibnite approachs the standard value. And iteduces the forming temperature of the stibnite is between 150℃～200℃.(3)Thequartz in different period have different thermoluminescence curve, and thethermoluminescence curves of the quartz in rich ore havethe characters of gently curve, unconspicuous peak and the luminous intensity has therelationship of positive correlation with the temperature.

矿物学研究发现：(1)沙拉岗锑矿床辉锑矿以所含杂质少，贫硫为主要特征；(2)利用晶胞参数测定得出，沙拉岗锑矿床辉锑矿晶胞参数接近于标准值，推算形成温度在150℃～200℃之间；(3)不同期次石英具有明显不同的热释光曲线，其中主成矿期石英的热释光曲线以发光曲线平缓，峰位不明显，发光强度随温度升高而增强为特征。

Simulation engineering stress-strain curve and experiment engineering stress-strain curve fit very well.

试验的工程应力-应变曲线与模拟的工程应力-应变曲线拟合的很好。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。