The exam will focus in depth on three essential areas of math: Problem Solving and Data Analysis, the Heart of Algebra, and Passport to Advanced Math.
考试将深度聚焦在数学的三个关键领域：问题解决能力和数据分析，核心代数，以及向高等数学的过渡。
Based on the diffraction optics, this paper analysis the effect of aperture matching on EMR, size of focus point and focus depth of the object in detail.
本文以衍射光学为基础，详尽地分析了光束孔径匹配对光能耦合效率、光斑尺寸、物镜焦深的影响。
Based on the diffraction optics, this paper analysis the effect of aperture matching on EMR, size of focus point and focus depth of the object in detail.
本文以衍射光学为基础，详尽地分析了光束孔径匹配对光能耦合效率、光斑尺寸、物镜焦深的影响。
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