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- equivalent circular aperture 等效圆孔径
- The Diffraction of Flot-topped Gauss Beam Passed circular Aperture[J]. 引用该论文 屈军;丁培宏;孟凯;崔执凤.
- The description of a plane wave diffracted by a circular aperture is directly started from the Maxwell's equations. 平面波经圆孔光阑衍射的表征是直接基于麦克斯韦方程组。
- As an example of applications, numerical calculation is performed to calculate the losses of Bessel-Gaussian beams propagating through a circular aperture. 作为应用举例，对零阶贝塞尔高斯光束通过圆孔硬边光阑时的衍射损耗作了详细的计算。
- This paper uses ANSYS finite element method to deduct the parameters of the equivalent circular zone,which can provide reference for the designingand construction of shield tunnels. 采用ANSYS有限元程序中的优化设计模块反演地层参数,以期对盾构法隧道设计与施工有一定的借鉴意义。
- The principle of the spread method of the equivalent circular panicle of special-shaped joint is discussed,and its application is expanded,which can be used for engineering design. 阐述了等效圆台法的原理，以及此方法在异形接头展开中的应用扩展。
- From Huygens- Fresnel principle, formulas are derived for determing the distribution of the field and intensity on axis when focused Gaussian beam is diffracted at a circular aperture. 根据惠更斯一菲涅耳原理，推导出会聚病折光束经圆形孔径衍射后光轴上的场分布及强度分布表达式。
- The series solution to the Fraunhofer diffraction field of Gaussian beam by a circular aperture is derived,and the fundamental characteristics of the diffraction field are analysed. 推导了高斯光束照射下夫琅禾费圆孔衍射场的级数解，进而讨论了衍射场的一些基本特征.
- From Huygens -Fresnel principle,formulas are derived for determing the distribution of the field and intensity on axis when focused Gaussian beam is diffracted at a circular aperture. 根据惠更斯一菲涅耳原理，推导出会聚病折光束经圆形孔径衍射后光轴上的场分布及强度分布表达式。
- circular aperture mtula-cut broach-cutter 圆孔轮切式拉刀
- diffraction of circular aperture 圆孔衍射
- Small circular aperture diffraction 微小圆孔衍射
- A simple and effective method is given to successfully simulate circular and different serrate type aperture's far-field diffraction and compared with the diffraction of hard-edged circular apertures. 摘要采用一种简单有效的方法，模拟了光束经圆形孔径和不同齿形光阑的远场衍射分布，并与经圆孔硬边光阑的衍射作了比较。
- A dime is equivalent to ten pennies. 一角等于十分。
- FRAUNHOFER DIFFRACTION OF GAUSSIAN BEAM BY A CIRCULAR APERTURE 高斯光束照射下的夫琅禾费圆孔衍射
- The dividend pay is equivalent to one quarter of the pretax profit. 所付股息相当于税前利润的四分之一。
- The Diffraction of Flot-topped Gauss Beam Passed circular Aperture 平顶高斯光束及其通过圆孔光阑的衍射
- A dime is the equivalent of two nickels. 一角硬币等于两个五分镍币。
- A meter is equivalent to 39.37 inches. 一米相当於三十九点三七英寸。
- The aperture in the door is so wide. 门上的孔隙太大了。
