查询词典 focus of a parabola

By the detail discussion onthe hardware of the smooth path control system of single-chip microcomputer developed and the system software including new type continuous smooth path software, the analyzing of international standard program languageISO andthe attempt to developmental application in the smooth path control systemand experiment have been done, the description of the smooth path of the non-circular curive such as ellipse, hyperbola, parabola and their realignment has been realized by the way directly to input their parameters. The correctnesson the priciple and the method of the continuous smooth path control and the forthright on programing method hayed been proved by the experiment, new way to realize higher accracy continuous smooth path control has been developed.

通过对所研制成功的单片微机平滑轨迹控制系统硬件和包括新型的连续平滑轨迹生成软件在内的系统软件的详细描述，进行了国际通用标准编程语言△ISO标准编码的分析和在平猾轨迹控制系统中扩展应用的尝试和实验，实现了椭圆、抛物线、双曲线等非圆曲线及其组合的直接参数输入的平滑轨迹轮廓描述，并通过实验证明了连续平滑轨迹控制原理及方法的正确性和程序编制的简捷性，为实现高精度连续平滑轨迹控制开辟了一条新的途径。

The results show that CZT wafer with the mechanical polishing treatment was easier to achieve the ultrasonic wire bonding between the Au electrode of CZT and the down-lead. Moreover, the weldbility between the CZT electrode thickness and the down-lead shows a kind of parabola relationship.

研究结果表明，经机械抛光表面处理的CdZnTe晶片，其金电极与外引线间容易实现超声焊接；CdZnTe电极厚度与引线焊合率之间呈抛物线关系，获得最佳焊接质量的电极厚度为180nm左右。

Nitrate (NO3--N) showed a single hump-shaped curve with soil depth increased, but ammonia (NH4+-N) showed a parabola curve, with lowest value found in 20-40 cm soil layer and highest value in 0-20 cm and 40-60 cm soil layer.

油松林土壤全氮和有机质含量垂直变化趋势相似，随土壤深度的增加而降低；硝态氮(NO3--N)均随土壤深度的增加呈单峰曲线变化趋势，而铵态氮(NH4+-N)随土壤深度增加呈先降低后增加的抛物线趋势。

The results indicated that the axial velocity distribution of the mixture was a parabola-like curve along the radius and the change of the velocity was larger in the region within 0%～25% of the pipe width (about 15 mm) from the pipe walls, but smaller in other positions. The vortex changed greatly in the region within 0%～16.7% of the pipe width (about 10 mm) from the pipe walls and then decreased gradually to zero at the pipe center.

结果表明，混合颗粒的轴向速度呈类似抛物线状分布，在靠近管壁约0%～25%管宽范围内，即在试验装置距管壁约15 mm范围内，轴向速度变化较大，其他位置处变化较小；涡量在靠近管壁约0%～16.7%管宽范围内，即在试验装置距管壁约10 mm范围之内变化明显，从距离管壁10 mm到竖直管中心涡量逐渐减小到接近为零。

The mathematical model of the ratio of radiuses difference to electro-negativity difference and the critical cooling rate Rc was established. The same relationships with a shape of upturned parabola in all five kinds of alloys were obtained with this model.

建立了原子半径差与电负性差之比Δd/Δe与临界冷却速度R的数值模型，并在所有五种不同合金系中获得一致且开口向上的抛物线关系。

And in parabola-aligned images, we find that using the combination of two parabolas as the projection axis can segment teeth more precisely.

我们事先收集了一些样本，以统计的方式估计出牙齿的大小、银粉与非银粉间的颜色分布情况。

Beginning with parabolas, the author explores the issue of 定点 between a line and a parabola, eclipse, or hyperbola.

笔者从抛物线入手，对抛物线、椭圆、双曲线与直线结合的定点问题作了一个探索。

The second one: we studied the effect of temperature on performance of LDs. It was found that threshold current increase exponentially, outpower and slope efficiency decrease parabola and exponentially respectively. Coefficient of temperature shift is 0.24/K, whereas characteristic temperature also decrease with rise of temperature.

研究了温度对激光器各参数的影响，随着温度的增加，阈值电流呈指数增加，输出功率和斜率效率分别呈抛物线和指数关系递减，同时特征温度也减少，波长随温度的漂移系数为0.24nm/°C，并且总结了一些温度和结构设计方面的关系。3。

Firstly,through changing the shape of cutter-edge,three-segment parabola was used to substitute for the linear profile, and cutter surface equation was deduced.

首先，通过改变刀具切削刃的形状，以三段抛物线代替齿条的直线齿廓，推导出了刀具齿面方程。

Results showed that the sediment transportation ratio increased with the discharge of flow increased and changed in parabola form with the slope gradient.

结果表明径流输沙率随径流流量的增加而增加，径流输沙率随坡度呈抛物线形式变化，当坡度在21°~24°之间时输沙率最大；径流剪切力也具有类似变化。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。