畸变,distortion
1)distortion[英][dis"t?:??n][美][d?s"t?r??n]畸变
1.Remediation on Non-linear Distortion of Pattern Image;衣片轮廓线照相非线性畸变的校正
2.Analysis and control ofdistortion for cylindrical gear in heat treatment;圆柱齿轮热处理畸变控制与机理分析
3.Study on the projection system of space coding anddistortion eliminating;空间编码消畸变投影系统的研究
英文短句/例句
1.photogrammetric distortion摄影测量畸变差，畸变差
2.twised nematic扭曲排列的向列相畸变
3.maximum undistorted output最大无畸变输出功率
4.distortion-correcting apparatus, photogrammetric摄影测量畸变改正仪
5.isochronous signal distortion tester等时信号畸变测试器
6.top bottom pincushion correction circuit上下枕形畸变校正电路
7.isochronous signal distortion testing equipment等时信号畸变测试仪
8.optical keystone corrector光学梯形畸变校正器
9.environmental pollution and chromosomal aberration环境污染与染色体畸变
10.deformation of vertically aligned phase mode垂直排列相畸变模式
11.An Improved CFD-synthesis Method for Predicting Inlet Dynamic Distortion改进的综合CFD与畸变合成法预测动态畸变(英文)
12.Having normal vision; free from visual distortion.无视觉畸变的具有正常视觉的；没有发生视觉畸变的
13.The distorted load current then causes distorted bus voltages to appear throughout the system.而畸变的负荷电流引起整个系统中母线电压畸变。
14.This deviation from perfect sinusoids is usually expressed in terms of harmonics distortion of the voltage and current waveforms.这种偏离完全正弦的畸变称为电压、电流波形的谐波畸变。
15.The higher frequency in the gains of chromosome No.结果表明,鼻咽癌染色体畸变具有类型广泛、畸变率高等特点。
16.A deviation in the normal structure or number of chromosomes in an organism.畸变，变形有机体正常结构或染色体数量的变异
17.Research on distortion invariant target recognition technology in joint transform correlator畸变不变联合变换相关器目标识别技术研究
18.Defection distortion test chart of transparencies for televisionGB/T6996.14-1986透射式电视偏转畸变测试图
相关短句/例句
aberration[英][,?b?"re??n][美]["?b?"re??n]畸变
1.Effects of sodium selenite on chromosomalaberration in the bone marrow cells of mice;亚硒酸钠对小鼠骨髓细胞染色体的致畸变作用
2.Study on Chromosome Aberrations Test determinated by Micro-whole Blood Culture in Vacuum Blood Collection Tube;微量全血真空采血管培养法应用于染色体畸变分析的研究
3.Chromosome Aberration During Malignant Transformation of Human Bronchial Epithelial Cells Induced by NNK;人支气管上皮细胞恶性转化过程中染色体畸变的研究
3)Aberrance[英][?"ber?ns][美][?"b?r?ns]畸变
1.An Analysis of ChromosomeAberrance of the Gastric Cancered;胃癌患者的染色体畸变分析
2.The causes of severity aberrance of secondary circuit harmonic of the 10 kV voltage transformer loop at Taigang,process and improvement were interpreted.主要阐述了太钢第六降压站新上10kV系统PT二次回路谐波严重畸变的原因分析、查找过程及改进处理。
3.Since perspective aberrance often occurs in the computer-designed perspective effect drawings, it is rather necessary to study the perspective effectan effect of perspective aberrance on vision.由于计算机在绘制透视效果图时易产生透视畸变,因此有必要研究透视畸变对视觉的影响——透视效应。
4)degradation[英][,deɡr?"de??n][美]["d?gr?"de??n]畸变
1.On the basis of analysing the outer performancedegradation of shock absorber on suspenson and from the relationship between outer and inner performances of the shock absorber, an internal relationship between the structure design anddegradation of the shock absorber is discussed in the paper.在研讨悬架减振器外特性空程性畸变的基础上，从减振器内特性和外特性的关系出发，探讨了减振器结构与畸变的内在关系。
2.Based on the well-known quarter car representation of the automobile suspension,this paper deals with the effect of shock absorber outer performancedegradation(OPD)on vehicle ride comfort and driving safety.以车辆悬架1/4车模型为基础,讨论了减振器外特性畸变及其对车辆平顺性和安全性的影响。
3.The double-tube hydraulic shock absorber critical velocity is very low and easy to make outer performancedegradation.减振器在车辆悬架系统中发挥着重要的作用，作为汽车底盘的主要阻尼元件，它不仅影响到车辆的舒适性，还关系到车辆的操纵性及安全性，其外特性由示功图和速度特性表示；普通双筒液压减振器临界速度较低，易发生外特性畸变，且低温条件下更易发生畸变。
5)Deformation[英][,di:f?:"me??n][美]["dif?r"me??n]畸变
1.A Method for MinimizingDeformation Re-projection of Images Based on Generalized Planar Rectification;基于广义平面校正的图像对最小化畸变重投影
2.Research on the deformation in single-slit microwave diffraction experiment;微波单缝衍射实验中的畸变现象研究
6)distort[英][d?"st?:t][美][d?"st?rt]畸变
1.In allusion to the problem that the reference input of adaptive filter is difficult to achieve when system voltage isdistorted and/or unbalanced,a novel method for harmonic,reactive power and negative sequence current detection based on double adaptive filters is proposed in this paper.针对在电压畸变及不对称时,自适应滤波的参考输入较难获得问题,提出一种基于双自适应滤波的负载电流中谐波、无功及负序电流的综合检测方法。
延伸阅读
畸变由于主光线的光路偏离而引起的成像缺陷。当光学系统校正好球差、彗差、像散和像面弯曲四种像差时，主光线与高斯像面的交点即为像点所在，并且是清晰的。但是当主光线与高斯像面的交点高度y与相应物点的理想成像高度y不等时，使像发生变形，与原来物体不相似。畸变可表示为称绝对畸变。或者以百分数表示称相对畸变。 畸变是由于垂轴放大率在整个视场范围内不能保持常数而引起的。当一个有畸变的光学系统对一个方形的网状物体（图2a）成像时,若δy＞0，则主光线的交点高度y比理想像高 y低,视场越大，低得越多，形成一啤酒桶形状的图像（如图2b）,故又称正畸变为桶形畸变；若δy＜0,则y比理想像高y高，视场越大，高得越多，形成一种枕头形的图像（如图2c），故负畸变又称枕形畸变。在一般的光学系统中，只要畸变引起的图像变形不为人眼所觉察，是可以允许的，这一允许的畸变值约为4％。但是有些需根据图像来测定物体尺寸的光学系统，如航空测量镜头等，畸变则直接影响测量精度，必须对其严加校正，使畸变小到万分之一甚至十万分之几。一般而言,畸变数值随光阑（指孔径光阑,下同）位置而异。对于单个薄透镜或薄透镜组，当光阑与之重合时，畸变为零。如果光学系统在光阑两边的光学结构互相对称,且整个系统的垂轴放大率β=-1时,互相对称的光学表面对垂轴像差（彗差、畸变等）有数值相等而符号相反的贡献，故整个光学系统的垂轴像差为零。因此对畸变要求严格的光学系统往往采取对称或近似对称的结构形式。
