finite sets无穷集合和有穷集合finiteadj.有限的Finite size volume holographic grating局域体全息光栅finite dimensional projective geometry有限维射影几何(学)finite element analysis software Ansys有限元软件ANSYSfinite - element structural software有限元分析软件finite difference time-domain method时域有限差分Finite-thrust trajectoryoptimization小推力变轨finite element semi-rigid connection试验研究finite Markov chain embedding approach有限马尔可夫链嵌入法finite element adaptive grid generation有限元网格生成finite element equivalent stress method有限元等效应力法