curvature of field
英 [ˈkɜːvətʃə(r) ɒv fiːld]
美 [ˈkɜːrvətʃər əv fiːld]
网络 像场弯曲; 象场弯曲; 场曲; 像面弯曲; 场曲率
双语例句
- Curvature of field: A lens fault in which a perfect image at all pionts on the flat film cannot be formed because the lens do not have the right curvature.
像面弯曲：镜头像差的一种。由于镜头的度不准确，所以不能在平放的菲林上造成完美的影像； - The influence of temperature, curvature radius of lens and the thickness of oil on ultrasonic field is analyzed.
并分析了温度、透镜曲率半径和油层厚度对探头声场的影响。 - At the same time, the distribution fractures in the strata have been predicted and evaluated by means of analysis of curvature, simulation of stress field and fault factors et.
采用曲率法、应力场模拟技术及断裂因子等方法，对研究区风化期破裂缝及构造裂缝分布进行了预测评价。 - The phase curvature of Fraunhofer diffraction field and its effect on wave propagation and imaging
夫琅禾费衍射场的相位弯曲及其对光传输和成像过程的影响 - In this paper, the expression of the curvature correction of the recording times in the prime vertical direction is derived by means of the method of the solution for spherical triangle in combination with the plane projection of the field of view.
本文利用解球面三角形和视场平面投影相结合的方法，推导出了卯酉方向记录时刻中星径曲率改正的表达式。 - Control of electric charge distribution by curvature of equipotential surface and electric field strength
等势面曲率和场强对电荷分布的制约 - A restoration scheme is proposed for space-variant image degradation resulting from curvature of field in imaging systems.
提出了一种用于像场弯曲图像的复原方法，分析了该方法的原理。 - The allowed region of the angular velocity of vortex depends strongly on the curvature of magnetic field lines.
涡旋角速度允许区强烈地依赖于磁场力线的曲率。 - The form of phase curvature of Fraunhofer diffraction field and its concrete expressions in different conditions are derived in the frame of general physics, their physical meanings are explicitly explained.
在普通物理的框架内对不同情况下夫琅禾费衍射光场的相位弯曲因子的形式进行了推导，并对其物理意义给出直观的说明； - In this paper, the effect of the curvature on the aerodynamic behaviour of the projectile is taken into consideration and both pressure gradient and shock wave curvature are obtained. On this basis, an approximate method for calculating supersonic flow field nearby the nose is presented.
本文考虑了这种曲率的存在，得到了顶点处的弹体表面压力梯度和激波曲率，在此基础上，给出了顶点附近超音速流场的一种近似计算方法。 - Wave-front Curvature Relation of Exciting Media Affected by External Field
外界场作用下激发介质的波前曲率关系 - In this paper, the equations based on the method of improved streamline curvature on S_1 stream surface, for designing torque converter blades are derived, and the criterion of flow field and the distribution principle of velocity circulation are proposed.
本文推导了适合于液力变矩器叶片设计的S1流面改进流线曲率法计算方程，提出了流场判别准则和环量分配原则。 - Nozzle flow field of SRM was numerically simulated with Fluent software. The effects of nozzle convergent half angle, radius of curvature on upstream of throat section and length of throat cylinder on flow field are investigated.
用Fluent计算流体力学软件对固体火箭发动机喷管流场进行了数值计算，研究了喷管收敛半角、喷管喉部上游圆弧曲率半径和喉部圆柱段长度对喷管流场的影响。 - According to the calculated result and experimental data, this flow rate distribution is mainly caused by the influence of the curvature of streamline on the flow field.
结合计算结果与实验结果认为，流线弯曲程度对流动的影响是产生这种流量分布趋势的原因。 - So it will be not precise if we discuss the radiation process of pulsars with synchrotron radiation or cyclotron radiation, but the synchron-curvature radiation can solve the curvature effect of the magnetic field very well.
因此，当人们使用同步辐射或者回旋辐射机制研究脉冲星的外层辐射时就会产生偏差，而同步-曲率辐射机制可以较好的解决磁场弯曲所带来的影响。 - We find that the resulting SCSC spectrum is significantly different from that of either synchrotron self-Compton or curvature self-Compton radiation if both the curvature radius of the magnetic field and the cyclotron radius of the electrons are within some proper ranges.
我们发现，如果磁场的曲率半径以及电子的回旋半径都具备适当的取值，同步曲率自康普顿辐射的能谱与同步自康普顿或曲率自康普顿辐射都存在较大差异。 - These phenomena caused by the rotation and curvature are particularly important for the understanding of flow field and losses generation mechanism of centrifugal and mixed-flow pump.
这种由旋转和曲率作用引起的现象，对了解离心和混流泵内部流动的发展与损失机理特别重要。 - There is always field curvature in image of large field optical systems.
大视场光学系统的像面往往存在场曲。 - The optical system use the aspherical technology can eliminate spherical aberration, astigmatism, curvature of field and reduce the energy losing. Consequently, high-quality images and high-quality optical properties can be attained by using the aspherical optical components.
采用非球面技术设计的光学系统，可消除球差、慧差、像散、场曲，减少光能损失，从而获得高质量的图像效果和高品质的光学特性。