According to Fresno 1 diffraction s principle the qualification for nny order of the fractional Fouler transform is derived from application of double-lens.
由菲涅耳衍射原理导出利用双透镜系统实现任意阶分数傅里叶变换的条件,给出分数傅里叶变换的阶及族参数与系统参数之间的一般关系,并对几种特殊情况进行了讨论。
Based on its system characteristics and technical specification,the design of the optical system with a concavo-convex doublet lens structure has been implemented.
针对给出的系统特点和技术要求,采用简单的凹凸双透镜的结构完成光学系统的设计。
: the mode TEM 11 、TEM 12 (or TEM 21 )、TEM 22 of Hermitian Gauss beams and the mode TEM 10 、TEM 11 of Laguerre Gauss beams) propagate through a focusing optical system (for example: a pair of lens focusing system), are obtainable on the basis of Huygens Fresnel principle and Sampling theory and by programming , calculating, and making use of Graftool.
以惠更斯 -菲涅尔原理和取样理论为基础 ,利用计算机编程计算和绘图软件 Graftool得到高阶模激光束 (如厄米 -高斯光束 TEM1 1 、TEM1 2 (或 TEM2 1 )、TEM2 2 和拉盖尔 -高斯光束 TEM1 0 、TEM1 1 )经过会聚光学系统 (以双透镜聚焦系统为例 )传播后的聚焦曲线 (r- z)。
Through applying ladle argon-blowing technology by two gas supply bricks,the ladle bottom blowing rate is increased,the dead band of ladle argon bottom blowing is reduced,the composition and temperature of the molten steel are made more uniformity,and then the inclusions in steel and the composition segregation are dererased.
通过应用钢包双透气砖吹氩技术,提高了钢包底吹率,减少了钢包底吹氩死区,使钢水成分和温度更加均匀,并降低钢中夹杂、减少铸坯成分偏析,因而提高了钢水质量及轧材性能的稳定。
The foundation of ontology of Laszlo s systems philosophy is the biperspectivism,and it is also theoretical base of systems philosophy.
拉兹洛系统哲学的本体论基石是双透视论,它也是系统哲学的理论基础。