查询词典 parabola

There is much noise in the state of eyes opening unforcedly, so the noise processing is necessary, the upper and lower eyelids are removed by parabola fitting, the facular is removed by neighboring gray average, the eyelashes are removed by finding all the candidate eyelashes by local gray minimum firstly, then the false eyelashes are removed by the beginning location, directional and length information of the eyelashes.

在人眼自然睁开状态下存在噪声，因此需要进行去噪操作：通过抛物线拟合的方法去除上、下眼睑；利用邻域灰度均值法去除光斑；去除眼睫毛时先用局部灰度极小值的方法找到所有候选眼睫毛点，然后利用眼睫毛的起始信息、方向信息和长度信息去除伪眼睫毛点。

The results show that the vehicle acceleration, the dynamic wheel load and offload factors increase with train speed, and distribute linearly. The safety of train operation and running comfort can meet the requirements when the high-speed train under secondary suspension passing through ballasted track subgrade structure. The dynamic displacement of the system is less influenced by train speed. The dynamic stress of subgrade surface increases with speed improving, and it is distributed as saddle along the lateral direction and as parabola along the longitudinal direction of subgrade surface. The dynamic stress of subgrade declines sharply along the depth of subgrade. The dynamic stress on 3 m depth below subgrade bed surface is about 16 percent of that of subgrade surface.

结果表明：车体加速度、动轮载和轮重减载率均随车速的提高而增大，呈线性分布；具有二系悬挂的高速列车通过有砟轨道路基结构时，列车的安全性及舒适度均能满足要求；系统动位移受速度影响较小；路基面动应力随速度的提高而增大，并在横向呈马鞍形分布，在纵向呈抛物线形分布；路基动应力沿路基深度方向衰减较快，在基床表面下3 m处，动应力只有基面的16%左右。

It is pointed that the parabola method is straightforward, but the results are relatively coarse, and the catenaries method is relatively complicated, but the results are precise, which takes into account all-around factors.

结果发现：抛物线法比较简单，但计算结果比较粗略；分段悬链线法考虑因素比较全面，计算相对复杂，但结果比较精确；对于空缆线形竖向坐标值两种方法的误差为0 739%，无应力索长计算两种方法的误差仅为0 31%。

Bridge engineering ; self-anchored suspension bridge ; parabola ; segmental catenaries ; cable curve ; zero-stress length

桥梁工程；自锚式悬索桥；抛物线；分段悬链线；线形；无应力长度

Took Sanchaji suspension bridge in Changsha as a case study, based on different hypothesis, two methods were deduced, the parabola method of cable gravity distributing uniformly along the span, and the catenaries method of gravity distributing equally along the curve.

以长沙市三汊矶湘江大桥为工程背景，对自锚式悬索桥的主缆线形及无应力长度的计算方法进行了研究，推导出两种基于不同假定下的主缆线形及无应力索长的计算方法：假定主缆自重沿跨径均布的抛物线法和假定主缆自重沿弧长均布的分段悬链线法。

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。

Dynamic focus voltage error of projection display system was studied in this article. Parabola dynamic focus method, projection tube shape and optics processing were analyzed.

从投影显示系统典型的动态聚焦方法与投影管特殊的荧光屏结构以及光学处理等方面对投影显示系统的动态聚焦电压误差进行研究。

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。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。