It is also shown that only when the gratings are cylinder or plane ones, the second order sagittal anastigmatic circular field and meridional non defocus flat field spectral images can be formed.
还指出仅当柱面或平面光栅时，才能形成二阶子午无离焦平场和弧矢无象散圆场谱面。
In a dusty field in Kitui, eastern Kenya, farmers are being taught how to construct small, semi-circular barriers of earth that control the flow of water, slowing its run-off.
在肯尼亚东部的基图伊，尘土弥漫的田地里，农民们正学着建造小型的环形土坝，以此控制水量、减缓水分流失。
And finally, the department table has a ADMRDEPT field which is a circular link to itself (identifying departments that manage other departments).
最后，department表有一个ADMRDEPT字段，该字段是到其自身的一个循环链接(标识管理其他部门的部门)。
Broadly, different theories in the discussion of the same field could be assigned a new arrangement and a new order beyond circular accounts.
从广义的角度而言，在同一讨论领域内的不同理论也可透过循环之观点获得一种新安排与新秩序。
For infrared detectors with spherical optics, the field of view is always circular.
对于球面光学红外探测器，视场总是循环。
Results of far field displacement around a circular cavity are given.
文中给出了圆孔周围的远场位移的数值结果。
The general formulas of radiation from dipole antenna in a circular waveguide are given by means of dyadic Green's function and field transformation.
本文采用并矢格林函数和场量变换方法，给出了圆形波导中偶极天线辐射的普遍公式。
The field of circular economy involves very complicated issues in huge system, which enlaces different soft and hard factors.
在循环经济场中，涉及的问题往往都有极其复杂的巨系统问题，其中软、硬要素交织缠绕。
Solutions in closed form of the complex potentials and the field intensity factors are given for a single circular-arc crack.
对单个圆弧裂纹的情形，给出了封闭形式的复函数解和场强度因子。
Results show that if the cross-section of the axicon is ideally manufactured in circular symmetry, the field distribution behind the axicon is approximately an ideal Bessel beam.
计算结果指出，当轴棱锥的截面为圆对称的理想加工时，轴棱锥产生的光场分布为近似理想的零阶贝塞耳光。
Electric Dipole Radiation. The Radiation Field, the Near Fields. Radiated Power. Example: Charge in Circular Motion.
电偶极辐射。辐射场，近场。辐射功率。实例：圆周运动之电荷。
The magnetic field distribution produced by displacement current in charging circular parallel plate condenser is discussed by using the concept of magnetic potential.
应用磁场矢势的概念讨论了充电圆形平行板电容器中的位移电流所产生的磁场分布。
Through comparison, it shows that at the same value of frequency and size, the far field of hexagonal piston is more uniform than that of circular piston.
结果表明，与圆形、方形活塞的辐射远场相比，在声波频率、活塞面积相同条件下，六边形活塞声源的辐射远场相对比较均匀。
Taking the circular fibres for the example, the first order correction local field and field shift in the fundamental mode peak field are discussed.
以圆光纤为例，讨论了一阶近似本地场形式及基模场在最大值处的场位移。
A built-up circular piston sound source is established in this paper. The directivity formula of its far field is obtained, and its validity is simulated.
依据本文构造的组合圆形活塞声源，导出了该声源远场指向性公式，并对其正确性和有效性进行了仿真研究。
Tashan circular economy in depth research group conducted field research park.
调研组深入塔山循环经济园区进行了实地调研。
The homogeneity of magnetic field produced by three parallel coaxial circular coils(TPCC) is analyzed through calculating.
对平行共轴三个圆形线圈形成的匀强磁场进行了研究。
But the application of Circular economy theories only dominate in industry field, in other fields, especially in agricultural field, the function of this theories didn't work well.
然而，循环经济理论的应用还主要停留在工业领域，在其它领域，特别是农业领域，其作用还没有充分发挥。
The near-axis field distribution of circular aperture antennas is obtained by numeric integration method.
采用数值积分方法分析了圆口径天线非轴向近场分布特性。
The invention provides a circular keyhole control system of an intelligent keyhole machine and belongs to the technical field of automatic control.
本发明提供了一种智能锁眼机的循环锁眼控制系统，属于自 动控制技术领域。
The utility model relates to a circular crushing device for caking fertilizer, which belongs to the technical field of the structure of the crushing device.
本实用新型涉及一种结块化肥循环破碎装置，属于破碎装置结构技术领域。
The study item designs two-set experimental devices for small-sized vertical and circular wind tunnel system and flow field simulation.
本研究项目设计了小型立式环型风洞系统和流场模拟两套实验装置。
Two dimensional particle image velocimetry system is used to investigate effects of the dielectric barrier discharge plasma on the flow field in the wake of circular cylinder cross flow.
利用二维粒子图像测速系统研究了低速风洞实验中介质阻挡放电等离子体对圆柱绕流尾迹区流场的影响。
Digital particle image velocimetry (DPIV) was applied to investigate the flow field around a circular cylinder undergoing sinusoidal oscillating movement in still water.
本文用数字粒子成像测速仪(DPIV)，对圆柱体在静水中作正弦振动而产生的振荡流场进行了实测研究。
They would take off and land in a circular motion, in conjunction with the air currents generated by the magnetic field energy.
它们在旋转中起降，与由磁场能量发出的气流有关。
The near field properties of circular aperture antennas with Gaussian amplitude distribution are analyzed by the aperture field integration method in this paper.
采用口径场法对具有高斯幅度分布的圆口径天线辐射近场进行了分析。
Based on a series of simultaneous electromagnetic field equations contented with the boundary conditions, the characteristic equation of the circular groove guide loaded with dielectric is derived.
根据满足边界条件的一系列电磁场方程，推导出填充电介质的圆形槽波导的特征方程。
CME triggering model has concentric circular magnetic field profiles to make CME magnetic field structure similar to that in the section of the magnetic cloud structure.
触发CME时采用具有同心圆磁场位形的触发模式，触发的CME事件具有和磁云横截面磁场相似的结构。
To scale and accent the center of the drive and guest parking, a circular pattern of textured pavers was created in the field of pavement, which also complements the edge detail in the court.
以规模和口音的驱动器和停车设施，铺设的纹理循环模式的中心是建立在路面，也补充了在法庭边缘细节方面。
To scale and accent the center of the drive and guest parking, a circular pattern of textured pavers was created in the field of pavement, which also complements the edge detail in the court.
以规模和口音的驱动器和停车设施，铺设的纹理循环模式的中心是建立在路面，也补充了在法庭边缘细节方面。
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